An old man who is grumpy. An extremely miserable old fart.
check out that curmudgeon, he's such a mofart~!
by Purdy Murdy January 14, 2012
1 more definition
MOfart, abbreviation for the term "miserable old fart" Term used to describe someone of any age who has a tendency to be grumpy, cantankerous, irritable and ill tempered without reason or provocation.
Man he can be such a MOfart!
by Princess_Merle January 21, 2012