Memejacked 

Sending or referring to a meme before your colleague does.

Italian Bearded Hooded Guy: "Oh man this situation reminds me of t-..."
Francospanish Bearded Guy: "It's like the meme song Run from Awolnation!"
Italian Bearded Hooded Guy: "Damn... Memejacked by this handsome Francospanish Bearded Guy again..."

Memejacked by Francospanish Bearded Guy March 11, 2020

momjacked 

when your mom joins facebook and you have to control what you post online

i was about to post that i got so wasted i was last night i was the only girl in a gang bang, but then i remembered my facebook got momjacked so i just said i had fun last night.

momjacked by polga October 27, 2010

Memejacker

Someone who constantly posts memes on social media sites

The over use of memes as comments would bring a person to be called a memejacker

Memejacker by brashdragger August 8, 2015