Top Definition
HAio is a synonym for failure.

Basic use of "HAio"

HAio can also be used in more complicated situations, but only certain human beings know how to control the word gracefully.

HAio, is originally used as a description of the male penis, on Portuguese. But has been brougt up, and is now used as slang. HAio is mostly seen used in European countries, but has in some way also been noticed in north Africa.
Q: Could you hand one of those juicy penises?
A: HAio, i just ate the last one, sorry.
by Susageofdeath January 10, 2011

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