Green’s Dictionary of Slang

(US black) a bully; thus pull a bogart, to act tough; jump bogart, to become aggressive.

1954		N.Y. Herald Trib. 28 Feb. 46/3: A ‘caper’ is a problem in geometry, with ‘Humphrey Bogart’ being any tough kid.
1972		D. Claerbaut Black Jargon in White America 58: bogart n. 1. a brawler; a bully. 2. a strong, physically aggressive person.
2000		Ebonics Primer at www.dolemite.com 🌐 bogart Definition: 1. one tough mutha fucka. 2. a bodyguard or thug. Example: This is sum serious shit, man... Imma have to call me some bogarts from ’Frisco.