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1.
A 'contest' in which two couples have sex within audible range of each other, with each couple trying to prove to the other couple that they have the hottest sex life.
Oh god, the neighbours are going at it again.
In that case, why don't we show 'em how it's done. let's have a fuck war!
by Raiden-sama August 03, 2011
 
2.
Back and forth retaliation or vengeance taken to ever-increasing levels of intensity.
I know you're mad about what she did to you, but just forget about it - no good can come from starting a fuckwar over this!
by madjimbo February 15, 2009