G Smash
It's when you pump your chest like a pumped-up chicken before getting it on with a girl, like you're trying to impress her with your flabby arms.
I did a G Smash before my date, and I still couldn't get my pants off.
He did a G Smash and still looked like he just woke up from a nap.
I did a G Smash and my shirt looked like it was about to explode.