20th base

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
Flag
Get the 20th base mug.

18th base

growing a penis or vagina and having sex with yourself
"woh dude I went to 18th base last night"
"..."
by Divi September 03, 2006
Flag
Get the 18th base mug.
More random definitions