Funderbutt 

(n) this word describes a person who gives off good vibes when everyone else is super sad or super sad when everyone else is super happy. They would be laughing at a funeral or crying at someone’s birthday (sad crying)

“WHY ARE YOU LAUGHING MY MOM JUST DIED!?”
“Hahahhahahha… *catches breath* IDK!”
“What a funderbutt.”

Funderbutt by 🫦slay baddie💀 November 15, 2022

fingerbutting

Sticking a finger up another person's asshole, or their own.

I caught Tom fingerbutting himself.

fingerbutting by Dr. Nardacci April 2, 2011

flunderbusted 

Like flabbergasted. Just much worse.

*Billy flies off a cliff*
Jimmy: *jaw drops and eyes widen*
Me: bro just got fucking flunderbusted

flunderbusted by ncitydeeznuts on tiktok February 4, 2022

underbutt 

The distinct area off the bottom that is at the lower part of the gluteus maximus. Usually the underbutt is highly regarded in terms of attractiveness. Often the underbutt is discovered at the beach when womens bikinis do not cover the whole area of the bottom.

Amy has an excellent underbutt

underbutt by bicbiq December 28, 2008

underbuttoned 

when a man leaves too many buttons undone so chest hair is sticking out

alberto: what do you think, am i under buttoned?
rosita: you could make a wig with all the chest hair i can see - when not wearing a tie, two buttons or more is underbuttoned

underbuttoned by desmian March 21, 2022

Dunderbutt 

a stupid loser butt head

Damian is such a dunderbutt

Dunderbutt by ED10297 November 23, 2009

Underbutt 

When girls wear short shorts and you can see the bottom part of their butts.

Damn did you Ashley's shorts? Her underbutt is completely exposed, and it caused me to bust an instant nut.

Underbutt by Tinnysman July 11, 2018