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

slambackingpoopyhead

when someone has done something to you on purpose so they are a slambackingpoopyhead

*ball hit u*
oi u did that on purpouse

no I didn't
yes u did slambackingpoopyhead

by Twinkletows5 June 10, 2018

Slapbacking

When you hit someone really hard on their back.

guy 1: yo
guy 2: HAHAHAHAHAHHA SLAPBACKING
guy 3: ..sd;lkkmlcmx.kvmdslkhcv,xcn,vm

by BrainNourishment October 23, 2025