Top definition
lack of sleep, or when you owe yourself some rest becasue you have been too busy.

when you are not getting enough sleep, and need to calculate how much you owe your body

sleep account is negative, or in the red

first used by British airways
and also sited on multiple occasions by lifehacker.com
i've been gathering some serious sleep debt since i have started pulling these all-nighters on a regular basis.
by Jesse Colburn March 04, 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
2
Something you accumulate whenever you don't sleep an adequate amount on a given night. In the ghetto they call it "slizzeep to da dizzebt".
If sleep debt was dollars, yo' mama would be a rich bitch.
by Nick D March 17, 2003
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