Top Definition
an abbreviation for diarrhea. Commonly ended with a long h sound to emphasize how weakening and gross it is.
Teddy: oh my god, worst diah of my life last night!
Rafi: I hate diahhhhh!
Teddy: i get it soooo much
Rafi: i know you're fucked!
by shes real effed July 02, 2010

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