1 definition by Connor Dui
An idiot. Someone who fucks up all the time and never succeeds in life. Deemer's generally fail at life, over and over again, yet never realize it.
"Hey man, I heard Mackenzie got pregnant again, even after she took 9 weeks of that Abstinence course."
"What a deemer!"
"What a deemer!"
by Connor Dui April 16, 2008