Stands for "scratching my hairy asshole." An expression to use whenever you don't feel like doing something and you're so bored that you would rather scratch your asshole.
Guy 1: Man where you gonna bang that girl
Guy 2: I don't know man
Guy 1: You better get on it
guy 2: Man smha i don't feel like it
Guy 2: I don't know man
Guy 1: You better get on it
guy 2: Man smha i don't feel like it
by Mrspaghetti August 19, 2012
Get the smhamug. 