1 definition by You'llNeverKnowWho

An acronym for "Best in Slot." Generally used when referring to the best items you can equip in gaming. Overused by gamers who think they're hot shit and use "BiS" for everything.
1. Potato-Salad: Guess what I got...Perfected Asylum Inferno Staff.
Bojingle: nice...BiS!

2. Amun: I wanna lick Amouranth's elbows.
Sleedus: Amouranth is BiS.
by You'llNeverKnowWho April 3, 2018
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