Top definition
The time frame appropriate for a nap. For instance, between 12 and 4.
Mary: I'm getting pretty tired.
Shea: But we've got homework, and it's 5:30. Way outside window of napportunity.
by charger752 October 21, 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