What is Hilariass?
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(hi·lar'i·ass)1: a. Of or characterizing something of such extreme hilarity that it jiggles one's ass cheeks from laughing so severely. b. Or such extreme hilarity that people wish to use the term 'laughing their ass off' in short as hilariass.
That joke was so f-ing hilariass!
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Not allowing yourself to sign off and go to bed until your chat box is empty of all contacts.
Yeah im going to bed, once im finished fa..