When having sex with a female, first, place one of your thumbs in the ladies vagina. Next, place the other hand's thumb into the butthole. When both thumbs are securely into the females body you end it (and probably your night) by saying AAAAAAYYYYYYYY!
The other day I stuck my two thumbs where they didn't belong and I did The Fonz. She ended up kicking me in the balls.
by KEnasty August 24, 2010
 Get the The Fonzmug.
Get the The Fonzmug. Giving a girl "The Fonz" refers to the act of ejaculating onto her face, then gesturing with two thumbs up and proclaiming the happy-days catch phrase: "Ayeeee"
by AdeezyForSheezy27 January 17, 2008
 Get the fonzmug.
Get the fonzmug. by scrapforce August 2, 2010
 Get the fonz itmug.
Get the fonz itmug. by iceman7000 July 8, 2010
 Get the Fonzedmug.
Get the Fonzedmug. Sexual act in which the male inserts his thumbs into a woman's asshole and says "aeeeee" as if he were The Fonz.
by Juanito Jones February 22, 2009
 Get the The Fonzmug.
Get the The Fonzmug. by dutchovenmaster March 19, 2003
 Get the The Fonzmug.
Get the The Fonzmug. a lesbian who takes on the characteristics of a male and would be ugly even if she was trying to be a female.
by Nicole/Angelica October 14, 2004
 Get the Fonzemug.
Get the Fonzemug.