Green’s Dictionary of Slang

1. (US black) a penis.

1936

Lillie Mae Kirkham ‘He’s Just My Size’ 🎵 He’s a kitchen mechanic, and he makes my biscuits rise / He use the best bakin’ powder, and his biscuit’s just my size.

2. (US, also bis) a pistol, a handgun.

1935		A.J. Pollock Und. Speaks.
1949		Monteleone Criminal Sl. (rev. edn).
1950		Goldin et al. DAUL 28/1: Biscuit. [...] 5. A pistol or revolver. ‘Dump (get rid of) that biscuit; some fence (dealer in stolen goods) was knocked off (murdered) with it.’.
1962		Ragen & Finston World’s Toughest Prison 791: biscuit – A revolver or pistol.
1973		E. Bunker No Beast So Fierce 84: Get a biscuit and rip something off — a bank, anything!
1995		S. Moore In The Cut 63: There seem to be more synonyms for guns than vaginas on this list. [...] bis, biscuit, a hand gun.
2000		Ebonics Primer at www.dolemite.com 🌐 biscuit Definition: a firearm, most likely a pistol. Example: Yo lemme see dat biscuit real quick. I’ma git dat nigga over dere.
2011		G. Hayward Corruption Officer [ebk] cap. 16: These fools done fucked around and let a nigga purchase a firearm! It’s a gat, a ratchet, a biscuit, a burner to all my inner-city home boys and a ooohhwop to anybody over fifty.
2016		Skepta ‘Corn on the Curb’ 🎵 Corn on the curb if a man diss me /My niggas got the biscuits in T.