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1. An ambiguous identifier used as a variable, akin to mathematics, in which any word can be inserted provided it keeps grammatical commandment. Typically the user has a specific word in mind that was purposely omitted. see thingy, thing. 2. Used as a filler word akin to "like", "um", et cetera. other spellings: herpnshmerp, herp-n-shmerp.
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