dick-sucker
1.
n. a male who performs fellatio (licking and sucking of the penis). (Rude and derogatory.)
In the bar, this dick-sucker came up and wanted to know my sign.
2.
n. a low and despicable male; a male who is despicable enough to perform fellatio. (Rude and derogatory.)
You slimy dick-sucker. I'll get you for this.