1) The phrase “What are you Brand New ?” Is used to call out someone who doesn’t understand common jokes or sayings.
2) A friend or person with infantile behavior like spilling beverages or dropping iPhones.
Friend : * Walks into Bar and knocks over a beverage tray*
Him: “Dude, What are you Brand New?”
A much younger girl with a guy a lot older than her
“That girl is brand new, surely you should be going for someone older
When you see someone that you're acquainted with, and they try to be abit 2 friendly and u ignore them; then they get hurt and they come around and act all brand new towards you.
" lmao I don't understand why he is trying to act brand new? He pretends he doesn't even know you're name like geez!" Haha