(G/Y) - stands for Gumball / You .

(You're Gumball, his brother.)

"DUDE! GET UP! WE'RE GONNA BE LATE."

You complain to Darwin that the alarm hasn't gone off yet.. but you've already pressed the snooze button an hour ago.

(Gumball/You) : "Bro..ugh.. it's 7:00."

"THAT WAS AN HOUR AGO!" Darwin says, shaking Gumball up and showing him the window to see the bus leaving infront of their eyes.

(G/Y) : "OHH MY GOD!" His eyes shoot open, as he begins to dress himself.