Top Definition
Having sex with a fellow user on the student life forums (i.e. fucking an allmsuer). It is a play on the word 'incest' and can also be used as 'allmsucestuous'.
shlabby and sexmeaklies had sex last night, they are guilty of allmsucest now.
by Loupe October 11, 2005
5 Words related to allmsucest

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