Nipples.
Usually used when referring to nipples on man boobs, but can be used when referring to female ones too.
"Are you cold? 'cause I can see your fonzies!"
by reinix October 14, 2007
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when your so fucked up all you can do is give a thumbs up and say "AYEE"
"hey steven what are you doin"

he looks up and gives a thumbs up and replies "AYEE" before falling over

"o he is Fonzied"
by Dybl 2 da E December 12, 2010
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The act of smearing poo on someone to give them sideburns. Usually done in their sleep. Much like a "Dirty sanchez" or "Hitler".
Chris got a fonzie last night, and it smeared all over his pillow.
by Noah April 7, 2004
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When you shove your thumb up a girls ass and yell "Aaaaayyy!"
by jw1973 April 21, 2008
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(n.) A 30 year old man who hangs around with teenagers who think he's cool.

(n.) A type of haircut resembling that of the tv guy.
The Fonz looks old. What is he, 30?
by Kung-Fu Jesus July 21, 2004
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Paying to get penetrated by a male prostitute. A person paying for a Fonzie would be the bottom.
"It's $20 for a chachi, and $40 for a Fonzie"
by Sparkles Chronike January 5, 2008
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