1312 stands for All Cops Are Bastards (or bastardized). 1-A 3-C 1-A 2-B
If we put the letters together, we get ACAB. ACAB also stands for All Cops Are Bastards.
Eli: ACAB! 1312! Defund the police!
Mary: Blue Lives Matter!!!!!!!
Eli: No, they don't. Blue is not a life.