look up any word, like tinder bombing:
 
1.
SGR
"shootgun rally" alluding to drinking a beer through a punctured hole in a beer can.
"hey rich you want to get a SGR in before we leave"
by Franky Beans April 19, 2009
 
2.
sgr
Shit got real
Shit gets real

whatever fits best for the situation!
i guess only use it when you're typing because it sounds weird when you say it out loud hahaha.
online chat thing or facebook fight bullshit

guy - let's fight bitch!
everyone else - ooooh sgr!
by tatysonline May 12, 2012