Someone that is a complete idiot and is in fact so stupid you feel they could walk around backwards smashing their bum into everything without realizing how stupid it is.
Did you see that report David produced? Yeah it was awful... He's such bum smasher.
by Reformation January 16, 2010
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.Buy the mug
Can you define these popular missing words?