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Noun. Synonym for "Bro." Derived from a stereotypical laugh issuing from a bro or bros at times of excitement or great exclamation. The female version of this is the Teehehe.
"Chahaha! I love college!"

"Chahaha! You wanna go throw some DISC on the QUAD?!"

or

"Wow, that guy is only good at one thing and that's beer pong."
"Well, that's because he's a Chahaha."

"All of their pictures are of when they're passed out and got drawn on!"
"Well yeah, They're Chahahas."
by CarCar2 April 11, 2010
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