Performing an act of ignorance and stupidity, named after the infamous winner of Big Brother 2007, Brian Belo.

Normally used in conjunction with the phrase "you're muggin' me off"
You're muggin' me off, big bwuvva!

Check him out - he's doing a belo!

A link to the the man himself doing a Belo on youtbue... (search herbal tea belo) - pna2yNrvNmU
by eznow October 18, 2009
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a belo is someone who is a goof and is below average
Blake was running and not paying attention. Blake, being a belo, ran into a pole.
by katie mcholm June 17, 2016
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Silly child version of a genocidal sociopath
Omg the Owl House is that a Kid Belos refrence?
by CipherMango October 19, 2023
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When speaking of a man.
Belo is a man.
by Belo-Is-A-Man January 14, 2022
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