2 definition by Divi

Top Definition
growing a penis or vagina and having sex with yourself
"woh dude I went to 18th base last night"
by Divi September 03, 2006

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giving yourself a blowjob and then your penis blows up.
"Dude I went to 20th base last night"
"Can you really?"
by Divi September 16, 2006

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