The act of "Barry Zito-ing" involves inserting an erect penis into an anus, whether the anus is male or female is of no consequence. The origin of "Barry Zito-ing" comes from Major League Baseball pitcher Barry Zito, and what he does to a girl to "cleanse" himself following a bad game. As cited in an interview with the "Make a Wish" Foundation, Barry Zito goes out after a bad game and fucks a girl in the ass. This concludes the definition of "Barry Zito-ing".
"So I was Barry Zito-ing this girl the other night."
"I hope she gets Barry-Zito-ed by a homeless man in a dark alley for being such a bitch."
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