A good indicator that can tell you if you are allergic to hashish. Shortly after smoking some, you notice a giant rash on your gooch.
"yesterday, LaTaqwanisha sold Jose some hash and after smoking it he went to take a piss and noticed that he had a purple Hash Rash."
by Municipal Bill September 30, 2011
5 Words related to HashRash
Also referred to as #Rash, an all too common twitter affliction of the over use of hashtags.
A major cause of HashRash is politics, resulting in tweets that say nothing but "#TCOT #TPOT #Porkulus #Stimulus #Congress #Teabagging #Teaparty #Fixednews #NObama #Iran #Pakistan"
by Atombrahms June 27, 2009

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