a friend with whom one has an occasional and casual sexual relationship.
1. "They've been friends with benefits for a few months now."
2. "I've never been comfortable with the idea of a friend with benefits."
3. "She's looking for a friend with benefits, not a serious relationship."
A term coined by YouTuber Caddicarus to refer to the 2000 Party Game Crash Bash as opposed to calling it a Mario Party clone.
"You could call it a Mario Party clone but I'd call it a Mario Party Friend With Benefits"