sitting big 

reserving room for yourself in crowded places by making yourself seem larger (thus needing more room) when people are piling in to a enclosed space. This gives you breathing room after everyone has settled in or gives you a way to save a place for people coming late in locations where saving a space is nearly impossible.

Jen is sitting big in the eRUPPtion so that we can come later.

sitting big by BentonG January 24, 2008

big sittin' chief asshole

A dumbass who thinks he has the best ideas while in reality the ideas that person have are always troublesome. It can also mean "reckless" or a "psychopath"

Lamar: "Nigga that's the Apache blood in me homie. You lucky i ain't do a flying tomahawk and scalp they motherfuckin' ass.
Franklin: "We can't repo the assets of a dead man, big sittin' chief asshole!"

big sittin' chief asshole by Gutbuster69 August 17, 2021

big fat ass shitting hurry 

in an extreme hurry,quickly

the police arrived so the robber left in a big fat ass shitting hurry

big fat ass shitting hurry by catlady77 April 8, 2011