Rubbing under your tongue? TikTok's bizarre new trend and its NSFW meaning

Have you been persuaded to start rubbing under your tongue? TikTok users' creativity just knows no bounds!

Young Confident Girl Removing Lipstick
(Image credit: Getty Images)

Have you been persuaded to start rubbing under your tongue? TikTok's interesting new movement is gaining traction across the platform, and as one might expect, there's a dirty meaning behind it. 

While the majority of app users are in search of dance challenges and cool makeup trends, others are concocting wild thoughts that truly don't need to circulate our FYP, but here we are!

Make sure to take your pesto eggs off the skillet because this is probably going to shock you. Allow us to introduce you to one of the wildest TikTok trends 2021 has gifted us.



Rubbing under your tongue: TikTok's odd new trend

No intricate dance numbers or cosmetic hacks here, folks. What you need to do is simple: lift your tongue to the roof of your mouth, or position it so that you have easy access to the bottom. Then, with a (clean) finger, you rub the veins and slimy corridors. 

The technical term is the lingual frenulum, but no one is interested in that. What users are interested in? The texture, as they insist it's similar to a guy's you-know-what. You were warned that this trend would be something...interesting

Although no one can uncover its origins, the #undertongue hashtag has been amassing new content alongside original music from Vinnie, and everyone's dying to feel under their tongues to see if this notion is, indeed, true. Currently, there are over 23,000 videos, and we have a feeling that more and more users are going to give this a whirl. 

Sure, some might feel as though this is an interesting finding—and that the two textures are similar—but is there really a need to record a video of your tongue massage? Well, 23,000+ people seem to think so. 

@genevahumbert (opens in new tab)

NOOOOO #PUBGMOBILE #MMKx007 #undertongue #ifykyk #fyp #fypシ #foryou #foryourpage #halloween #halloweekend

♬ original sound - vinnie (opens in new tab)
@seeyounext.tuesday (opens in new tab)

I was like for why....are they rubbing the bottoms of their tongues like that?!🤣🤔 #curious #noitcantbe #MMKx007 #fypシ #wtf

♬ original sound - vinnie (opens in new tab)

"Should honestly be called 'I should mind my own damn business trend,'" one user noted, and we appreciate her honesty. 

Since sex is clearly on the brain when it comes to this trending hashtag on TikTok, why not take a gander at tips for having the best sex ever, according to your star sign? It'll be more satisfying than playing with your tongue. 

For those who are a bit more curious about other how-to's and ways to make life easier, there is plenty of fun content circulating the app. Check out the best beauty hacks, TikTok home hacks and TikTok exercise tips, which will stir up some creativity and find their way into some of your routines. 

We can't guarantee these trends are free from sex-minded hashtags, however. As you might recall, everyone is attempting to coregasm at the gym (not just for health benefits). Looks like the six-packs will be on-trend again if this new move has anything to do with it! Meanwhile, other TikTokers are using lube as makeup primer, which the pros do not recommend. 

Ah TikTok: what will you think of next?

Danielle is a writer for woman&home and My Imperfect Life, covering all-things news, lifestyle and entertainment. 


The heart of her time at Future has been devoted to My Imperfect Life, where she's been attuned to the cosmos and honed in on astrology coverage within the Life vertical. She's partial to writing pieces about the next big TV obsession—anyone else impatiently waiting for "Conversations with Friends"—and keeping you up to date on new trends like the latest must-have from Zara. 


Before her time at Future, Danielle was the editor of Time Out New York Kids and a news editor at Elite Daily. Her work has also appeared in Domino, Chowhound, amNewYork and Newsday, among other outlets. 


When Danielle is not working, you can usually find her reading a new book, coffee at hand, or attempting a new recipe. (Recommendations always welcome!)