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Related to Caps LOL, this is when a word or phrase is funnier written in capital letter than in lower case letters. Often used in online messaging.
Person A: ...then I set his hair on fire!

Person B: You set his HAIR ON FIRE!

Person A: Yeah! Hahaha! LOLCAPS DUDE!

Person B: HA HA!
by Lychgate December 04, 2008
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