[mid-19C; 1960s+] to perform fellatio (on).
[2000s] (US) a general term of abuse, lit. a fellator.
see under horn n.2
see under bone n.1
[1930s] (US black) to fellate.
[1990s+] to fellate.
[2000s] of a woman, to fellate.
[1990s+] (Aus.) an excl. of dismissal or derision.