A safeword conserns BDSM sexual acts. In BDSM, begging to stop increases pleasure and reality. A safeword is used to actually mean "stop", since screams for stop aren't sincere. The safeword is usually a normal word, like "pink", "banana", or "door" and is determined before starting play.
Jan: Tonight's safeword is "music".
Rob: Oh no! Stop it! Stop it! Stop it!
Jan: Ooh, you've been a naughty boy.
Rob: Please, I'm begging you!
Jan: Alright, enough for tonight you filthy boy.
A word which describes when the pleasure should stop during sex, before things get out of hand.
Usually something that wouldn't be said DURING intercourse.
Guy: What's tonight's safeword?
P.S: Hi Shannen. LMAO.