2025 has been an explosive year for the Gen Z “dictionary”, filled with countless new terms adapted from movie lines, random remarks, or even from familiar daily phrases. Some slangs didn’t just trend for a moment but have enduringly become a staple of everyday conversation. So, in the first week of December, what are the hot slangs dominating social media?”
Slang serves as a creative twist on language, turning familiar phrases or everyday words into something entirely new. Created spontaneously and without any specific formula, each slang term carries a unique vibe – from funny to playful – bringing a sense of joy to our daily chats.
In this last month of 2025, we are seeing a mix of fresh slang emerging alongside established favorites that are still keeping the internet abuzz.
According to YouNet Media’s SocialTrend, between December 1st and 7th, 2025, the TOP 5 hottest slangs drove over 532.93K discussions. Dominating the list is “Pháp luật nào”, which claimed the spotlight with 251.15K discussions and 1.55M interactions, leaving the rest of the Top 5 far behind.
So, what is fueling the dominance of “Pháp luật nào”? And why have these slangs become so viral? Let’s explore with YouNet Media through the lens of Social Listening data in the article below.
*Disclaimer: Within the scope of this article, discussion volume regarding social slangs was aggregated by YouNet Media’s SocialTrend platform from public posts, comments, and shares on social media. The data measurement period ranges from Dec 1st to Dec 7th, 2025. Data is updated and processed by AI, with an accuracy rate of approximately 60-70%.
#1 Pháp luật nào
“Pháp luật nào” traces its roots back to a cheeky confession line from the 8X generation: “Pháp luật nào cấm nam yêu nữ?” (What law forbids a man from loving a woman?). Lately, this vintage slang has made a spectacular comeback thanks to TikToker Xuân Hùng Dịch Nhạc and his parody remix of “Đoản Xuân Ca”. The trend quickly spiraled into a viral sensation, spawning bizarre yet entertaining variations ranging from Christmas carols to Opera performances.
The slang’s momentum in the first week of December was also heavily boosted by the Zootopia 2 fever. Phrases like “What law forbids a fox from loving a rabbit” became instant conversation starters, with fans flooding the internet with content celebrating the cute chemistry between Judy and Nick.
Thanks to this mix of catchy musical parodies and the Zootopia hype, “Pháp luật nào” skyrocketed to the top of the Social Slang Chart. According to SocialTrend, in just the first week of December 2025 alone, this slang generated an impressive 251.15K discussions and 1.55M interactions.
#2 Vuýp
TikToker Hơi Tinh Nghịch has recently gained popularity with his distinctively quirky intonation, accidentally turning his spoken phrases into viral sensations. The standout hit is “Vuýp” – a humorous twist on “VIP” (Very Important Person), which has officially entered the Gen Z dictionary and inspired countless posts jumping on the trend.
Despite appearing as early as late October, “Vuýp” showed no signs of cooling down in the first week of December. The slang continued to buzz across social platforms, racking up over 119.28K discussions and 1.02M interactions, propelling it to Rank #2 on the list of the week’s hottest social slangs.
#3 Hey Siri
“Hey Siri, skip to payday!”
“Hey Siri, go to work for me tomorrow!”
Once a simple command for Apple fans to check the time or make a call, “Hey Siri” has been transformed by the online community into a way to confess their “inner voices”, saying the things we rarely speak out loud but all secretly wish would happen.
Big brands like Lazada, Viettel, and Domino’s Pizza wasted no time catching this wave. They adopted “Hey Siri” as a fresh language for their storytelling, seamlessly integrating messages about promotions, vouchers, and bargains into their social posts and attracting steady interaction. From December 1st to 7th, SocialTrend data shows that “Hey Siri” sparked 90.37K discussions and 503.59K interactions all over social networks.
#4 Nói không ai tin
When faced with a scenario so unbelievable it sounds made up—yet is completely real—netizens have ditched normal exclamations in favor of the phrase: “Cái này về nói không ai tin” (If I tell people this, no one will believe it). Originating from TikTok comments on “laugh-or-cry” stories, this phrase has officially joined the massive collection of internet slang.
“Nói không ai tin” is the slang having the longest history of the Top 5. Despite surfacing back in June and July, this slang remains a go-to expression for online users. It currently ranks as the TOP 4 hottest slang of the first week of December, racking up 36.17K discussions and 382.42K interactions.
#5 Mời đoàn mình di chuyển lên núi dùm em
“Mời đoàn mình di chuyển lên núi dùm em” (Let’s move up the mountain) used to be just a functional phrase for tour guides. However, it has recently re-emerged in a completely different form – full of wit and playful teasing.
Going viral since July, the phrase has been adopted by the online community for daily situations. When someone says or does something so “cringey” or awkward that the conversation falls into silence, this line serves as a graceful joke to break the ice. It’s a tease, sure, but it also brings laughter and helps break the awkwardness for anyone who just slipped up with a weird remark.
The slang’s staying power in the TOP 5 was also fueled by the hit song “Mời đoàn mình lên sàn” by Gill from the Anh Trai Say Hi Season 2 Finale. In the week of December 1st – 7th, “Mời đoàn mình di chuyển lên núi dùm em” racked up 35.96K discussions and 257.64K interactions.
In Summary
Social Slang acts as an effective catalyst for driving engagement on social media. Since each slang follows a unique discussion trajectory, monitoring these trends is essential. Choosing the right trend, for the right audience, at the right time is key to increasing brand visibility and fostering more relatable interactions with consumers on digital platforms.
Stay ahead of social media trends by following the SocialTrend Ranking or visiting YouNet Media’s SocialTrend platform here
