Acronym for "Fucking With Clothes On", a euphemism for dry humping, or simulating sex while one or both parties is/are still clothed.
J: What happened with him last night?
L: Casual FWCO, no condoms in the house. I was naked though, so there was a little slippage. Just the tip!
L: Casual FWCO, no condoms in the house. I was naked though, so there was a little slippage. Just the tip!
by #JTT March 21, 2013