A person who speaks at least 14 "Umm"s per minute, where "Uhh"s are equal to half an Umm, according to Dvorak's Hummer Theory.

See also: Berkeley hummer
The slave recognized the Senator to be an ummer after it measured 16 Umms per minute during the Senator's speech by using an Umm-meter, in the morning.
by CitizenSlave July 20, 2013
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A way of introducing a boyfriend, girlfriend, or lover when you don't wish to say any of the free. The name comes from the fumbling you do when you introduce them: "This is. . .um..er..."
"This is my ummer, Olivia."

"Mom, this is um. . .er, David."
by lizzie mag June 2, 2005
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An insane gamer who goes all night until 7:00 in the morning and then passes out.
I CAN'T STOP GAMING I AM AN UMMER!!!
by tittyfuck69 April 27, 2009
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A word commonly associated with younger children as an expresion of doing something wrong
Kid A: Do you know who broke the window?

Kid B: Yeah, it was me.

Kid A: Ummers!
by G B September 29, 2005
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1) Something you hold that prevents you from getting wet whilst it's raining
2) An umbrella
When it started raining, this girl pulled out the most colorful ummer belly to keep herself from getting wet.
by Dawnie December 13, 2006
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