G Smash
It's when you puff up like a disgruntled balloon before you go get it on with a girl, like you're trying to convince her you're not a disappointment.
I did a G Smash before my date and still looked like I hadn't eaten in a week.
He did a G Smash and his shirt looked like it was about to pop.
I did a G Smash and my chest looked like it was about to take over my body.