Top Definition
What soybeans become once they are fermented with vinegar and fungus. This supposedly edible concoction smells vaguely like ammonia and tastes mostly like ass. Some people refer to it as a meat substitute, but don't believe them.

Die-hard Vegetarian: Hey, man, want some of my tempeh?
Other person: Nah. Maybe if I were starving to death.
Die-hard Vegetarian: Dang. I don't want my tempeh either....
by creaternity April 11, 2006
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