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2.
When you blow into a girl's cleavage, like a raspberry, but with boobs!!
You're a titty whistle!!!
by JANINJAlike5 February 15, 2009
 
1.
Similar to a titty twister, but instead of crying "uncle," the twistee must ignore the pain long enough to whistle.
Twistee: "Argh, my tit! Uncle! Uncle!"
Twister: "Whistle! Whistle, you little bastard!"
Bystander: "Now, that's how you give a titty whistle."
by billbob12345 December 13, 2010