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3.
A storage area in a house, usually on the top floor.
The mumpty has become all dusty...we need to clear it up.
by mumpty lover March 13, 2005
 
1.
slightly bruised banana, grown in the Tuna Town of Adelaide.
E! What the fuck r u fucking mumpties doing
by MARTAN LUTHOR PRINCE November 09, 2010
 
2.
A Mumpty is a Mum who is far cooler than normal Mums. A Mumpty never tells you to turn your music down, likes your friends, gets pissed with you, provides you with money for extra curricular activities and doesn't set a curfue.
I told Mumpty I wasn't coming back for tea tonight.

Mumpty's coming to the pub with us tonight.
by KizzieShadows December 28, 2009
 
4.
A storage area, usually consists of one whole group.
Eg: The mumpty upstairs needs sorting out.
by Mumpty lover March 13, 2005