SJGR is an acronym for Shit Just Got Real. Used for situations where shit escalated.
Mom: You son of a bitch!
Brother: Damn right!
Me: omg!
Our teacher: And class, thats why i'm the best teacher ever.
Me: *raises hand
Teacher: yes?
Me: If i wanted to kill myself i would just climb up to your ego and jump down to your IQ.
Entire class: DAAAAAAAAAAAMN! SJGR!