1 definition by KoolKumi

Top Definition
Mating artic foxes with erect nipples who were smoking weed...er

Yiff : Sound made by mating arctic foxes.
En: an acronym that means "Erect Nipples".
Heim:To smoke weed..
er: making it an adj. or "Emergency room" if you want it to be.
Person: WHAT ARE YOU DOING?!
You: Yiffenheimer
Person: What?
You: Yiffenheimer (walk away)
by KoolKumi October 30, 2010

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