When you find yourself laughing at something hilarious (online), and other people in the (IRL) room get creeped out.
Dude1: HAHAHAHAHAHAHAHAHAHA
Dude2: Wtf is up with you?
Dude1: LOL dude, this cat meme is hilarious!
Dude2: Right...
Dude1: *sigh* you'd laugh if you understood.
Dude2: Ohhh, I understand. You're being hilarioud!
by RangerRicky January 17, 2010
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Something that is hilariously funny, so much so that the laughter produced is alarmingly loud.
Foxy01: How do you get your picture in the yearbook?
CoolGriffon: By NOT getting your picture taken, that's how.
Foxy01: Why don't you suck my penis, John?
CoolGriffon: Because I'm not a fag like you!
Foxy01: Hey, you don't have to be gay to enjoy a good BJ.
CoolGriffon: Ok you can shut up, horse ass.
FunkyBrat: Oh my god this fight is HILARIOUD!!
by FunkeyRat April 10, 2006
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Something that is hilariously funny, so much so that the laughter produced is alarmingly loud.
Foxy01: How do you get your picture in the yearbook?
CoolGriffon: By NOT getting your picture take, that's how.
Foxy01: Why don't you suck my penis, John?
CoolGriffon: Because I'm not a fag like you!
Foxy01: Hey, you don't have to be gay to enjoy a good BJ.
CoolGriffon: Ok you can shut up, horse ass.
FunkyBrat: Oh my god this fight is HILARIOUD!!
by FunkeyRat April 10, 2006
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something being so funny that you accidentally spell hilarious wrong because your laughing so much
a dyslexic man walked into a bra is a hilarioud joke
by Dim February 08, 2004
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