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!!!
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.
A big fat shit with no friends
Wow that guy is such an ummer
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!
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."