This is a meme that was created by a video showing a man saying the words:
"Oh you playin' minecraft?
I like ya cut, G." before proceeding to slap a bald child
on the back of the head.
This is often used as a phrase before slapping a person (often someone that recently had a haircut) on the back of the head.
Source:
youtube.com/watch?v=2TA6rSkPMPA
Person 1: "Hey man! Look at my new cut!"
Person 2 proceeds to
walk behind Person 1.
Person 2: "I like ya cut G."
Person 2 proceeds to slap person 1
on the back of
the head.