shit lap
verb: To start shitting in a public restroom after someone who is already in there shitting, and to finish and leave before they are even out of the stall.
Person 1: I was in the john taking care of business, when somebody busted into the stall next to me, dropped trow, and started makin' ass trumpets like you never heard before. Craziest part about it, he was done, cleaned up, and outta there before I was even ready for paper.
Person 2: You got shit lapped, bro.
Person 2: You got shit lapped, bro.
shit lapped
when a person enters a bathroom stall, takes a crap and leaves the stall faster than someone who has been in another occupied stall and is still crapping.
Joe: Have you seen Terran?
Gren: I think he isn't feeling well. I went into the men's room and shit lapped him.
Gren: I think he isn't feeling well. I went into the men's room and shit lapped him.