Buttshaft 

A term used by teens to recognize that they are in the room. It is usualy yelled in a viking-like manor.

Andrew:(walks into the room) Buttshaft everybody!

Everyone else: Buttshaft Andrew

Buttshaft by mr.0wl February 23, 2009

Buttsharking

The act of kissing ass.

Man did you see Bob buttsharking the new Boss.

Buttsharking by Bubbacheese October 10, 2005

Buttshawty 

Someone with a big booty

Damn she’s Buttshawty look at her big butt

Buttshawty by Natedawg248 December 30, 2019

buttshitfaceass 

someone who just sucks ass, someone no one likes, someone that everyone who wud wanna knee right in the balls!

"Just cause i love fall out boy doesnt mean im a buttshitfaceass!"
"Yes it does"

"I think tony hawk is overrated, and ryan sheckler is def not a pussy, and he is better than mullen and haslam!"
"Go suck suck major cock, u dick lick, stupid buttshitfaceass!"

buttshitfaceass by agentmichaelscarn6969 July 28, 2009

Bunshaft 

The act of inserting one's penis between another's buttocks without penetration

Yeah, she's cool and all, but all she ever wants to do is bunshaft.

Bunshaft by Cookie_Monsta November 15, 2010

Buttsharpies 

The name for a group of permanent markers that are placed inside the anus of a human being, then photographed, and posted on reddit.com.
Completely NSFW, but is can be found at the subreddit:

/r/ButtSharpies/

You see that picture on reddit? That chick had the world record with 14 buttsharpies!

Buttsharpies by Hex68 January 15, 2014

Buttshit 

Different than the more ambiguous term "shit", Buttshit refers to the actual shit from a butt.

That smells like buttshit.

Buttshit by Pryceless4lyfe February 22, 2017