Describing an act of sexual intercourse that was unplanned, completely spontaneous, and performed without any foresight whatsoever.
Bob: Dude I met this girl from Kentucky last night, asked what her name was, didn't get an answer, brought her back to my lair, and then banged her guts out.
Dave: Sounds like that was totally sperm of the moment.
Bob: Yeah, it sure was.
Dave: Sounds like that was totally sperm of the moment.
Bob: Yeah, it sure was.
by busdriverboris3 June 18, 2009