Kentucky Uncle

A man who has a child with his sister, which makes him both the uncle and the father.

Oh man, I bet Sam has a Kentucky Uncle because of how stupid he is.

by Captain Martian March 10, 2016

Kentucky Uncle

When a man is brushing his teeth while taking a shower and the paste drops down and lands on ones meatus causing a stinging sensation.

I was trying to get a head start to my day by brushing my teeth in the shower and accidentally gave myself a Kentucky Uncle.

by Kentucky uncle Kenny April 2, 2022