1 definition by iowa13

Top Definition
a flood that, once it happens, won't happen for another 100 years, unless theres a 500 year flood 15 years later
Able: I thought '93 was the 100 year flood!
Mable: You thought. But this one is a 500 year flood.
by iowa13 June 14, 2008

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