German last name meaning "cabbage head" generally the last name of a boy who treats girls badly. Boys with the last name Kohlhorst are not trustworthy, and generally use girls for sexual favors while lying to them to lead them to believe they truly care for them.
Also the last name of boys who believe in bragging about penis size. Kohlhorst males will generally brag they have an abnormally large penis, but in reality it is usually untrue.
That Kohlhorst boy is a lying, cheating, sex-obsessed jerk!