1 definition by christmahannukwanza
a very dull individual. one who would rather work or do things a normal person would not enjoy doing, instead of having fun.
Josh: "Sam, you should come to my party tonight."
Sam: "No, I'm having dinner with Melissa."
Josh: "You're such a mullygrub."
by christmahannukwanza Dec 15, 2010 add a video