dumb-butt
This is like calling someone a dumb-ass but it is school-appropriate. It is used to tell someone that they are stupid. Yay for being school-appropriate!
Shut yo bubble gum dumb dumb lookin butt the freak up
Example:
Girl: u have a crusty potatoe face
Me: shut yo bubble gum dumb dumb lookin butt the freak up
Girl: u have a crusty potatoe face
Me: shut yo bubble gum dumb dumb lookin butt the freak up