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(adjective)- originally derived from when a transsexual male wears woman jeans and you can clearly see their balls bulging out in the "groin" area. This definition leads into what is know officially known as a ball sack fail:

(adjective)- A ballsack fail is the worst/biggest fail you can think of or encounter.
Examples of a Ball Sack fail include (but are not limited too): Having sex with a person contracting herpes/getting in an accident with a car that isn't yours/ or giving the fat drunk chick your number at a party.
by eastcoastd January 18, 2011
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