(noun) used to describe a person who plays lacrosse but is a HUGE tool. Carusbros (plural version) often date skanky girls who are at least 4 years younger than himself. The usual attire for a Carusbro is a pinny 7 sizes too small, to show off his muscles, a bright orange hunting hat, and kanye glasses to make sure everyone knows he's a douche. Basically it is the biggest insult for a lacrosse player, just like calling a mexican a "spick".
Josh: Yo dude I'm wearing my pinny tonight; oh and my 8th grade girlfriend is coming too.

Bart: Dude you're being a Carusbro, I might have to block you on facebook......
by countfunkyou November 2, 2011
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