To eat or feed. Used with small children, or retards.
Honey girl, you like mummum?
by Lindsey April 21, 2003
1 more definition
Very prude old woman with an ugly living room. Bam and Jess Margera's grandma(Phil and Don Vito's mom).
"I bet you 'test drove' a lot of 'cars.'"-Mum Mum, Viva la Bam
by Lindsey February 14, 2004