An utterance said out of anger or more likely frustration, it's a mixture of the word "booby" and then "cons", but has absolutly no relation to the word "con"... ya can't con boobys.
(A driver just made a wrong turn at a wrong intersection.)

"Ah! Suck my boobycons!"

(A man drops a wrench on his foot.)

"You fuckin' boobycon!"
by Ker Bear July 12, 2005
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