we are cooking

a term used to denote high performance in a sports/athletic setting.

Person 1: "Man, we are up by like 6 points!"
Person 2: "I know, we are cooking, keep it up"

cooked

to win by a large margin

Person 1: "I heard you guys crushed *insert sports team here* last night"
Person 2: "Yea, we cooked"