Top Definition
"Grah-Tahrd-eS"V-N
Forever and irreparably mentally inept in any sense or fashion comprehensible on so many level the witness will suffer from tsunamic diarrhea and profuse vomiting, seizure and possibly cardiac arrest.
1. "This place is infested with gratardis."

2. "It's unfortunate that she was or is gratardis, or showing symptoms."

3. "Is gratardis contagious or considered an STD? What are some things I should know before venturing out?"
by PhDu April 24, 2011

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