When someone wakes you up by emitting a fart in your face.
That tramp tomass pulled a mumrah on me this morning! Just he wait till he finds the surprise i left in his cereal bowl, heh
by [Harry^Hardcore) July 27, 2006
Top Definition
Cool Band from the south east of London
with ska/punk/metal/funk/prog-rock/death-reaggae influences
by nixo October 16, 2003
The art of creeping up on your mum and shouting RAH!
Russ was grounded for 2 weeks for "Mumrahing" his mother while she was mastabating in the shower
by Russ Gray August 12, 2006
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