חפשו מילה כלשהי, כמו ratchet:
 
1.
A old time greaser.
An over the hill hood.
Hey, check out the old guy, he's a fonzi.
מאת Robert Michael Hensel 17 באפריל, 2008
 
2.
Sexual act in which the male participant inserts one thumb in the female participant's vagina and the other in her rectum, while saying "Heeeyyeee!" like the character from the popular television show "Happy Days".
Dude, last night I gave Stephanie a Fonzi and she went nuts!
מאת Bobby Joe Wilson 20 באפריל, 2008
 
3.
Sexual act in which the male participant inserts one thumb in the female participant's vagina and the other in her rectum, while saying "Heeeyyeee!"
Dude, last night I gave Stephanie a Fonzi and she went nuts!
מאת Mister dbagg 18 באפריל, 2008