Top definition
When a man or teen is wearing tight-often microfiber-underwear and he has a large scrotum and testicles but a tiny penis that gives off the appearence of having a eight-to-twelve inch penis.
"There was this guy at the gym who looked like a stud in his boxers, but when he took a shower it was just an 8 inch sag."
by Bass Drop Donnie June 25, 2012
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