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5. yabo
a person who is sexy beyond belief but usually have to deal with ED.
Tom Cruise must be a yabo.
1. Yabo
An Australian Redneck
That skank ass aussie called me a yank! Friggin' outback trashy ass yabo!
2. yabo
A person who thinks everyone is gay!
Yabo: Simon is gay! Arun is gay!
3. Yabo
A yabo is the douchebag in the gym that doesn't know what he or she is doing.
Do you see that yabo over there growling and screaming curling 25s?
4. Yabo
Someone unwilling to donate.

Japanese in origin, the first definition actually being unaesthetic.
File his email under "waste of time" he's a yabo.

This party is nothing but a bunch of yabos, that's why there's no more alcohol.
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