Top Definition
A successful practical joke on an suspecting person, usually a close friend or family member. Iaongs can be innocent and sweet, and maybe even funny, but most of the time they are painful and scaring and result in a held grudge.
Why do you hate April Fool's Day so much?

Because everyone keeps pulling Iaongs on me!
by lizzieissunburnedforever July 09, 2010
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