A feeling of EXTREME pleasure that occasionally occurs when a male sratches his balls. (generally some of the looser skin from the sack) The pleasure is equal to or greater than the pleasure of an orgasm.
WARNING:
This wonderful wave of pleasure usually results in a frantic scratching of the testicular region that leaves men red, chapped, and chafed. Stop scatching immediately after the scratchgasm for your own safety!
It's ok to scratch your nuts at work or school. You're a man, people expect it of you. But if you have a scratchgasm, try not to moan. That usually freaks people out.
Used in reference to the rapid-fire singleleg motion usually executed by dogs when rubbed in "that right spot".
Sean: Stop making out with my dog, bro. You know her nubbin is at the base of her tail.
Paul: Dude, she came over to be rubbed. What else am I gonna do?
Sean: Bro, that's a scratchgasm. You just went all the way with my dog. Uggh.
Strecthgasm is a combination of two words. Strect and Orgasm.
Stretchgasm is the feeling you get if you wake up in the moring and you stretch. You feel go and your muscles get relaxed. It feels like an orgasm but more on the backside.
Stretching for staying in one spot for a long time.
Person: *strecthes*
Person: Damn what a stretchgasm!