Shadow Bumping 

When on an online car game your player is at a delay causing your car to hit other players when you didn't hit them or you hit a car that isn't there anymore.

Man, this game has so much shadow bumping. I keep hitting players!

Shadow Bumping by Hayase June 21, 2021

Shadow-bumping 

On the IMDB forums, the act of posting a blank response and then deleting it a second later thus intentively bumping the targetted thread and remaining anonymous as the bumper.
Specifically detested because it is a stealth form of necroposting and often used by trolls.

boxOmetal: some idiot just revived that y2k thread
cardboardboy: yes, well done idiot
boxOmetal: wtf?
cardboardboy: saw your name on the most recent post before it was deleted you shadow-bumping idiot

Shadow-bumping by blueshift August 13, 2006