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1.
When two or more guys are having sex with a chick and they accidentally touch penises; much like two swords dueling.
Scott and I were tag teaming this chick and he was afraid we might cross swords! Thankfully it was more of a Chinese Finger Trap situation than anything else.
by TonyTone June 25, 2006
246 60
 
2.
Simply when two guys pee in the same toilet / urinal / bush / bin / girl's mouth and the streams cross.
Dude, we're both desperate, let's just cross swords

I saw Dom's massive penis last night when we were crossing swords

No homo
by Nomin October 23, 2010
36 81