seatback

When leaving a chair, you can say "I call seatback" and no one else in the room can take the seat away from you. Similar to saying, "I call shotgun" when approaching a car.

No way, you can't sit there, I called seatback!"

by Jamie Kozma April 16, 2006

seatbacks

when leaving a seat calling seatbacks before someone else sits in it gets you your seat back upon returning. If you sit somewhere else, or go outside than seatbacks is nullified.

Get up out my seat, I called seatbacks 'fo you sat down

by lesteveman September 5, 2006

seatback

The action of accidentally leaving something behind on an airplane, most notably in the seatback storage area in front on you.

I was reading a great article in Wired, but I seatbacked it on the flight back from Kona.

by johntex December 8, 2004

seatbacking

Leaning back in your seat on an airplane and preventing the guy behind you from using their laptop.

"I didn't realize I was seatbacking that poor shmuck, but I needed a nap."

by Blave August 8, 2008