milktard

One who has a problem digesting milk, most likely due to being lactose intolerant.

I think I'll pass no milk and cookies - you know, I'm a milktard.

by Jaime "milktard" from NJ August 3, 2005

milktard

A person whose main source of nourishment is milk but he still can't avoid getting a milk moustache when drinking milk.

My little brother is a milktard.

by A Concerned Family Member November 2, 2007