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1. Slang phrase in Mandarin Chinese for one who believes his or her friends are telling the truth regardless of how ridiculous and preposterous the things they are trying to tell him or her are.

2. One who gives his or her friends bragging rights to exclusively tease them for endlessly searching the Interweb for the definition of phrases.
Stewy: "Hey what does ti ti chou pi yi mean?"
Adeline: "We can't tell you... look it up online!"
Stewy: "Ok. (one hour later) I still can't find it, is it spelled differently? I'm so confused."
Adeline: "muahahahaha"
by the wonderful waffle girls January 14, 2011
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