Top Definition
Said after a fart for amusement of both self and those around. Well worth it.
Little Jimmy farts
Little Jimmy: Ahhhhhh, Bisto!
Other People: Wow! He's really cool and funny!
by RSK August 09, 2003
2 Words related to ahhhbisto
a really cool person who is discriminated against on a certain chat room irc
that guys really cool infact hes ahhhbisto
by Tony T June 07, 2003

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