Top Definition
a person that has an interest in other peoples undergarments, it could be an unhealthy fetish by ones own judgement.

or a phrase from Pink's song "Bad Influence"
I am the instigator of underwear, and your mom is not wearing any.
by ~blank~ January 16, 2009
5 Words related to iNSTiGaToR oF uNDeRWeaR

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