Top Definition
The breaking of a bond with the addition of your MUM.

Originates from biology lessons on glycolysis, and your MUM.
S: Is Joe still going out with that goth chick?
J: Nah mayte, they had a serious case of mumcolysis. apparently his mum ain't too big on all that alternative crap.
by chocolatebear18 October 08, 2009
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