Buttshawty 

Someone with a big booty

Damn she’s Buttshawty look at her big butt

Buttshawty by Natedawg248 December 30, 2019

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