Green’s Dictionary of Slang

1. a fellator.

2000

Three Six Mafia ‘From Da Back’ 🎵 Y’all niggas want a real dicksucker come Down South.

2. a general derog. term.

2001		posting at Survivor Susan Hawk Fan Site 3 July 🌐 Guess what bitch...I LIED!!!!!!!!!! I know, that’s no better for me to do than you, but hey at least it paid off for you I guess (and particularly for dicksucker Richard; the son-of-a-bitch).
2008		Simon & Zorzi ‘Unconfirmed Reports’ Wire ser. 5 ep. 2 [TV script] That dicksucker [...] took my money.
2008		Simon & Zorzi ‘Unconfirmed Reports’ Wire ser. 5 ep. 2 [TV script] ‘Why we doin’ Junebug anyway?’ ‘Heard he called Marloe a dicksucker. Shit like that’.