A spurious statement regarding the size of one's penis.
He uttered an unforgivable phallacy last night. The sad thing is that it worked... She went to his room during the party. I can only imagine the look on her face after he dropped trou.
by HanTzu November 4, 2010
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Mike said he had a 9 inch dick...that is SUCH a phallacy...
by Whitty May 26, 2003
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Phallacy is the name of an amazing clothing company which offers magical color changing clothes.. That's right clothes that change color when you go outside. AMAZING MAGICAL

The word phallacy is a play on the word Fallacy as in a misleading argument or false argument.. Thus Phallacy's Clothing misleads many by having things appear on it..
Dick: Dude did your shirt just change color?

Jane: Yeah it's magic nig!

or

OMG YOUR SHIRT JUST HAD STUFF APPEAR ON IT !

DUH I bought this wonderful color changing shirt from phallacy lets go play in the sun and make it change...
by The Phallacy September 13, 2006
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1. Any person, place, or thing which bears resembalance to a wang.
2. Any act done in a manner which, similarily, somehow bears resembalance to a wang.
1. Person one: Dude, that's quite the phallacious hat you have on today.
Person two: Thank you, old chap.

2. Person one: Man, that was the most phallacious backflip I have ever seen.
Person two: Asshole, shut the hell up, I can't help it. You should fuck a cat.
by renegademaster June 26, 2005
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Incorrect spelling of the word "fallacious." Usually done as a Freudian slip by people with a certain something on their minds. 8==D

Penis horny Freudian phallus 2017
That politician always makes such huge, veiny phallacious statements!
by Juniorjay December 25, 2016
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A word describing the types of egomaniacal lies men will tell in order to get attention/sex.
His claim to have extensive knowledge about wine, philosophy and Italian sports cars is totally phallacious.
by Zagaloo November 25, 2009
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Using a phallic (dick) joke in an intelligent discussion. (Not to be confused with: logical fallacy)
Our debate group had a pretty solid point, up until the point Robert committed a logical phallacy and our whole argument went to waste.
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