In mode

Can be used to describe a lifestyle, but is often used in relation to a state of being; when one is strongly locked-in and heavily focused on a mission or task — mode will usually bring out the best in one who has obtained it, no matter what it is they’re working toward.

—Basketball game—
Player #1: Aye dog, pass me the ball!
*Player #3 doesn’t pass ball*
Player #1: Bro, I’M OPEN!
Player #2: Aye chill, homie’s in mode rn.
Player #3: *In mode*
Player #3: *Proceeds to knock down a stepback 3*