someoe who is fat, ugly, stupid, a faggot, can't spell worth shit, and is just all around a retard.
"Wow, Chelsey, what a Felmer!"
by AMH&CMH. December 17, 2010
1 more definition
When you are fucking someone in the ass, cum in the ass, and drink the cum out with a straw.
Ian Cramer gave his girlfriend a felmer because he was thirsty.
by Ken002 April 16, 2007