The silent set of rules that all men are bound to.
Things said and done that stay within manhood.
Dude, why did you tell Trish I fucked her sister?! You totally breeched the Manstitution.
by Chris November 5, 2003
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a person of the male sex who works as, is, or has been a male prostitute.
Dude, your dad is such a manstitute cause your mom pays him.
by Tyler K. King October 6, 2006
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An adjective for a man who has multiple sexual partners regardless if he's in a committed relationship or not. This person usually has low self-esteem and is over compensating for their small dick. They have no concern sticking their small dick into any pussy that they can and are fueled by obtaining multiple partners sometimes per day but quite often per week. It is possible the manstitute has a mental defect or disease causing them to act out in this manner. The major difference between a prostitute and a manstitute is that unlike the manstitute the prostitute is at least getting paid, while the manstitute is just showing how much of a low-life he is.
"Homer, did you fuck someone else again...you're a Manstitute"
by Monett July 5, 2013
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rules and amendments for men to say and do certain things such as the right to say "no homo" to contradict any gay statement.
Dude I want to just put my dick in Tom Brady's mouth and stroke "no homo".

Man that's just homo man.

No its not i said no homo. its in the man constitution or manstitution.
by boreashell September 19, 2009
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Dude 1:dude!i banged 3 chicks this week alone.can't believe myself.
Dude 2:oh!! you such a manstitute.
by o boy332 March 27, 2009
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