Gum on my leg
Pulling one's testicle out of shorts, boxers or underwear and stretching the sack and holding the stretched sack with thumb to the inner thigh and then stating to someone in close visual distance that you've got gum stuck to your leg.
"Hey honey (or friend/girlfriend), I have gum on my leg!"
Frank stood there with his left testicle streched down to his knee showing it cleverly and proudly to his wife.
Frank stood there with his left testicle streched down to his knee showing it cleverly and proudly to his wife.