The motion of High-Fiving given by two people from a distance, usually accompanied with the high-fiving sound effect "WOOPISH."
Dude 1: I found $100!
Dude 2: Sweet! Air Five!
Dude 1 & 2: WOOPISH!
When something is just a long session of depressing material. It can also be a movie or TV show that is depressing.
1.) Jane was telling me about how her best friend got cancer, It was a depress-fest to say the least.
2.) I saw "Saving Private Ryan" last night, and man was that a depress-fest.