To bust a twinky means to bust a nut or to experience ejaculation.
Person 1: Dude, this hentai video made me bust a twinky!

Person 2: Let me see that video...
by EdgyJakePauler69 April 29, 2018
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when one tries to stop or when something is blocking the urethra during ejaculation but it simply comes out harder and farther
Male:Oh no not yet not yet **cum splatter** ahhhg Shit, busted twinkie.
by The Retarded Vacuum January 15, 2014
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