Common game for young males, "silly swords" involves using two (or more) competing streams of urine as if they were swords in a sword fight.  Unlike a pissfight or pissing contest, urinating on the competition is never allowed.  The urine stream is only used against the other person's stream, just like a sword fight.
by Frank Klaune March 6, 2004
 Get the silly swordsmug.
Get the silly swordsmug.