Top definition
This can mean many things, all of which are (as the name implies) destructive to the recipient's anal opening.

Noun: Something which is used to inflict massive anal damage (broomhandle, monster dildo, armadillo, shoe, etc.)
Noun: The actual technique of using a tool (as described above) to pound the victim's anal opening into submission.
"After being tied down to prevent escape, the man was given a thorough backdoor sledgehammer."

"I will use this lampshade as a backdoor sledgehammer if you come near my house again."
by Argonak August 18, 2008
Mug icon

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