Doing something stupid for a tiny reward or no reward at all. A person doing a stupid act Example: A. I'll give you a nickel to suck my toe. B. No, I'm not doing a lempcke. OR Hey, that's a good stunt for a reality-based TV show. You could make a fool of yourself in front of millions. Then everyone would know what a lempcke you are.
LEMPCKE
Meaning of LEMPCKE in English
Slang English vocab. Английский сленговый словарь. 2012