As a statement:
I was on 4chan and I was all LSJAMM.
As a response:
Biff: I just had
sex with my
mother.
Barb: LSJAMM
About someone else:
That Russian kid seeing
porn for the first time was totally LSJAMM.
In Meatspace:
Guy #1: Dude, check the hottie.
Guy #2: El-es-jam for sure