Top definition
usualy said by a bloke when asked a question. any question as a matter of fact.

it can also mean the following:
no
yeah
err no way!
totaly
meh wotever
go away
ummm
*clears thoroat*
Girl: Do you have a crush on me?

Boy: ummm...
by Neko =^_^= August 11, 2006
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2
The sound made when something absolutely amazing happens, (cumming on a girls face, doing a perfect headshot on CSS, getting a hole-in-one in golf), to perfect this sound you must have a fairly deep voice and put all your power into it until your throat hurts!
Rob: Finally fucked that girl Alex last night, as i cummed over her tits i let out the greatest 'UMMM!' ever, i'm not gonna lie, IT WAS GOOD!
Adam: Thats what i like to hear!
by BrownusBearus August 03, 2010
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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3
The response to a question that you know the answer to but don't want to admit, the response to a question you don't know the answer to or just a response to piss someone off.
"Can you help me reformat my hard drive?", ummm...
by playball25 January 04, 2012
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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