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1.
When you crack a joke and someone else doesn't catch on.

A little flick of the hand in the direction you would naturally bat, while making a "shhhiou" sound with your mouth. Much like when someone does it over their head.

You say "Swing n a Miss" directly after the swing - all in 1 word.
Ryan: Haha, check out THAT broad broad.

Jim: I think you mean "bored" broad.

Brett: Yeah, because she doesn't have any food!

Ryan: Hahahaha.

Jim: Huh?

Ryan & Brett: *shhhiou* Swing n a Miss!
by Dene Halatau July 01, 2010