When you take your nut-sack and press it against a glass door/window.
Chad: "im hellllla hungry brah!"
Kaitlynn: "yeahhh beeeeeeebbbbb, were fucking hungryyyy"
Blake *presses ballsack against the sliding glass door while both grabbing his shlong shaft and squeezing his ass/taint/bonch/grundle muscle to obtain optimum nut sack surface area*
"Munch on this chicken skin pancake, twat-waffles!"