Top definition
The abbreviation of Automatic Neighborhood Cat Defense Unit
which every neighborhood has at least one of, being most commonly a black cat which will respond aggressively and or violently if you attempt to steal a cat from it's street. A confrontation with an ANCDU could result in serious injury and/or death.
Ive decided to steal to dogs instead.

Why?

Because I'd rather not get annihilated by ANCDU.
by REBEL-D January 22, 2010
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