Wiktionary
fuck buddy
alt. (context vulgar slang English) A sex partner with whom one has sex, without any emotional attachment (no strings attached). n. (context vulgar slang English) A sex partner with whom one has sex, without any emotional attachment (no strings attached).
Usage examples of "fuck buddy".
But in his way, Requiem had made it clear he did not want to be food, or my fuck buddy.
It wasn't that she was against a little mutual sex here and there in a fuck buddy sense, but good God, had the man no notion of personal space?