Top Definition
the art of having sex with a mother. This doesnt necessarily have to be there own, but anybody that they are aware of being a mother. mummed bummed bumming
oh dont worry about jim, hes just gone for a spot of mumming.
by Kris Ryan March 20, 2008
mumming is when you hum and mime a song in your head.
oh wow. i was just mumming that to myself! how weird!
by hariboliciasardolls June 30, 2010

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