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1.
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!
by #JTT March 20, 2013