Definitions by NNBUME

Practical Friday 

The result of a shortened school week, such as a four day or three day week. The day before the end of the short week is practical Friday. If the week ends Wednesday, Wednesday is practical Friday.

Guy: Wanna hang out tonight?
Girl: I can't, it's Wednesday
Guy: yeah we can! It's practical Friday!
Girl: Ohh... um I had plans.

Practical Friday by NNBUME April 10, 2012