Green’s Dictionary of Slang

D n.⁵

(US black, also the D) the penis.

1994		G. Smitherman Black Talk.
2014		C. Eble (ed.) UNC-CH Campus Sl. Spring 2014 4: THE D — dick penis: X: ‘That girl keeps staring at me.’ Y: ‘She totally wants the D.’ Ordinarily used in jest. Popularized by song ‘So Sexy’ by R. Kelly & Twista.
2016		67 ‘Milly Rock’ 🎵 My niggas fuck up the opps / My long D fuck up the thot.

In compounds

In phrases

throw the D (v.)

(US black) of a man, to have sexual intercourse.

1986		2 Live Crew [song title] Throw the D.
1994		G. Smitherman Black Talk.
2003		V. Bogdanov et al. All Music Guide to Hip-hop 484/1: With X rated offerings like ‘Throw the D’ and ‘We Want Some Pussy,’ Campbell and his colleagues popularized a style of rap that thrives on decadence.