I'm A G - to describe someone who is so cool they could sit in a hot t

to describe someone who is so cool they could sit in a hot tub and still say it was just a little warm.

My cousin said, 'I'm a G,' and then he took a nap during the final exam and still got an A.

My homie said, 'I'm a G,' and then he ate a whole pizza and said it was just a snack.

My friend said, 'I'm a G,' and then he ignored his mom for a week and still said she was the best.