Refers to any delightful and sexual-desire-arousing visual experience --- like a group of hot chicks sunning themselves topless --- that causes a guy to get a woody and jizz his underwear.
"Relieving the pressure" before heading out the door can help you avoid any embarrassing "oopsies" if you unexpectedly happen upon a swellcum sight while you're "out and about".
by QuacksO June 1, 2019
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