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An expression mainly of contempt, but also amusement, or complete indifference. Universally applicable and appropriate to use in any possible situation.

Santa Barbara/Isla Vista slang with origins in 2015. Originally used to rebuke a dog named Beau after he would pee or poop inside the house. Word started to spread at UCSB, then SBCC, has since been used on a variety of campuses in California.
"Dude you going to bed? Wow.. we were gonna watch the movie brah......"
"Sorry bro, aids mid-term tomorrow... good night."
"Wow... Bad Beau"
by Jonnnio April 03, 2017
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