Green’s Dictionary of Slang

dicklicker n.

[dick n.1 (5) + SE licker]

a fellator or fellatrix; thus an unpleasant person; adj. dicklicking.

[US]N. Heard Howard Street 226: Ahm sho’ nuff glad they got that dicklicker, man.
[US]J. Webb Fields of Fire (1980) 28: Cocksuckin’ dicklickin’ mohfucka.
[US](con. 1998–2000) J. Lerner You Got Nothing Coming 41: Among my male peers in the company, we routinely referred to each other as ‘glorified clerks,’ except when we got really honest and called each other ‘gofers,’ ‘ass-kissers,’ ‘butt-wipes,’ and ‘dick-lickers’. [Ibid.] 118: Dick-licking dirtbag Dirtboys!