growing a penis or vagina and having sex with yourself
"woh dude I went to 18th base last night"
September 03, 2006
giving yourself a blowjob and then your penis blows up.
"Dude I went to 20th base last night"
"Can you really?"
September 16, 2006
© 1999-2015 Urban Dictionary ®
Free Daily Email
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.