Ur mom- a hot; middle aged person that I've fallen in love with
Ex. : Ammie! I'm in love with ur mom!
Ur mom is what I did last night and I did her pretty hard. She was kinda tight and she got the party started."ooooooo aaahhhh ooooooo ahhhhhh mmmmmmm"
Person 1:what are you doing tonight?
Person 2:hopefully ur mom!!!!
Random guy around that u dont know: oooooooooooh!!!!!
ur mom is a definition of a particular overweight/fat women with autistic children.
"ur mom is so fat she ate the hamburger sign"