Top definition
a customer that spends so long in a store or restaurant that they begin to "rust."
These nasty rustomers won't leave, even though closing time was a half-hour ago.
by AE Joseph November 13, 2006
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