underbite 

when you're making out with a chick, and you slide your hands down her pants and pinch her bare ass. UNDERBITE!!! see the intruder...

i gave my roommate's mom the underbite last night.

underbite by nate fingerman July 17, 2006

underbite 

when your eating pussy and you get a mouthful of shit

Fuckin Bitch, I just got an underbite.

underbite by AlBundyisgod1906 April 26, 2006

Underbite Chia 

Someone who has a major underbite with crooked teeth. And chia pet hair.

Wow! what an underbite chia you are!

Underbite Chia by shrogor cheet January 8, 2020

Alabama Underbite 

When an inbred looking girl without teeth is going down on you and then sucks your balls from below, not under, like a fish to bait.

Ol' girl was going at me good and then dropped her dentures and hit me with an Alabama Underbite.

Alabama Underbite by Hoodlum Crew April 19, 2019

Severe underbite 

Severe underbite -- when it smells like pussy but it tastes like shit.

She smells great but tastes funny -- I must have severe underbite.

Severe underbite by Al Berich October 3, 2020

underrated comment 

The response to every top YouTube comment.

*clever comment with thousands of upvotes*
“underrated comment”

underrated comment by pqalmz November 1, 2020

Underrated 

The reply you will see under EACH and EVERY comment on YouTube. Usually written with the intention to get as many likes as possible if the original comment gets popular.

Timmy: Bro my Dog died.
Steve: F
Troll: Underrated
Timmy: *Punches the troll into his face*

Underrated by Peepeepoopoo from urbdic January 11, 2021