NTSB 

Non-Tipping Son of a Bitch

Gawd damn man, I cut that man a crispy line shape-up and
he turned out to be a NTSB - Non-tipping son of a bitch!!!!

Those guys came in, oredered half the menu and left without tipping,

I hate a gawd damn NTSB - Non-tipping sons of bitches!!!!

NTSB by Blackhear November 23, 2015

NTSB 

Describing the attributes of a female. No titties, some booty.

"Hey, man, check out that chick. She must be a member of the NTSB."

NTSB by Rshots2001 February 13, 2009