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>n. 1 a bitter miserable person who must act in such a way as to make those around him miserable also. 2 a person who can not bear to see others in a state of happiness.
ORIGIN Late twentieth cent.:English, unable to get an erection; flat, like a tire.
Who's that flatdick?
Flatdick by Bing June 18, 2004
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Look at the state of that driver, I'll bet it's a fucking flatdick.
Flatdick by Fatmanupnorth October 16, 2021
a top down foolish ass pranksta thats always flacid and cant get it up
damn whats with the flatdick you canker sore.
flatdick by steve March 9, 2004

Flat Dick Syndrome 

A rare condition where one's penis is as flat as a piece of plywood. There are approximately 15 individuals who are known to suffer from this condition. It is contagious and is often linked with balltap prone males.
Phil: Hey Tim, why is your dick so flat?
Tim: Its a condition called Flat Dick Syndrome, or FDS. Please don't make fun of me.
Phil: Aww sorry. Can I touch it?
Tim: K.
Flat Dick Syndrome by Magesh October 19, 2012

fratdick 

The new fraternity member who says stupid things like "You don't call your country a cunt so don't call a fraternity a frat."
See that guy sleeping on the lawn, he got wasted last night at the party and shit in the washing machine, what a fratdick.
fratdick by loverhater July 12, 2009

flat dick 

Term used when describing a person who is idiotic or is useless, kind of like a flat dick would be.
Did you hear what Greg said the other day? He is such a flat dick!
flat dick by Josh December 9, 2004

flatdicking

unresponsiveness; inactivity, lack of follow-through, delaying, procrastinating
"The order needs to be placed by Thursday, so no flatdicking on the reply please."
flatdicking by Craig M. Kolodge April 27, 2006