Verb
suck off (third-person singular simple present sucks off, present participle sucking off, simple past and past participle sucked off)
(slang, vulgar, transitive) To perform oral sex (fellatio or cunnilingus) on.
You might think your boyfriend's straight, but he sucked me off last night.
suck-off
Was trying to suck off Taser worth the shitstorm you have caused? Source: Internet
This was the kind of thick, deep, squelchy mud that could easily suck off a shoe mid-step. Source: Internet