rat jacker

(1) A person who is willing to stab you in the back.

(2) A person who you confidently confide in and they can’t help but to release it to everyone.
(3) someone who plays dirty.

(A) I thought I could trust him but he turned out to be a rat jacker.
(B) This new video game is awesome except for all the corner hiding rat jackers camping.

by bpd43155 September 25, 2018

ratjacket

Ratjacket is a reputation or 'jacket' for snitching. Once acquired, a ratjacket is typically permanent. In the office and other environments where people become well-known to each other, the ratjacket is a form of social leprosy and can lead to ostracization and worse.

Emma noticed a chilly social thermostat at the office. To her horror, Emma realized she had a ratjacket after singing to management about Jenny and Heather's time-card collusion.

by Mo Dixley September 18, 2011