Green’s Dictionary of Slang

1. (orig. US black teen) a foolish, gullible person.

2001

Source Aug. 47: Fifteen years ago Rob Base defined a sucka as someone who needed a bodyguard.

2. (orig. US black teen) a general term of abuse.

1968		N. Heard Howard Street 223: You ain’t never been able to do nothin’ with me and you know it, sucka.
1972		N.C. Heard To Reach a Dream 74: ‘I don’t even know what you talkin’ ‘bout, sucka’.
1993		A. Rodriguez Spidertown (1994) 127: You ain’t protected anymore, sucka. You jus’ like us now.
1997–2000		College Sl. Research Project (Cal. State Poly. Uni., Pomona) 🌐 Sucka (noun) 1. A person. 2. A person who sucks.

3. (US campus) redup. as a term of affectionate address.

2001

Eble Campus Sl. Fall 10: SUCKA SUCKA – term of affection used in a greeting.