gear up
To step up to the challenge, get motivated, work harder to get the job done. Man up. Entice. Motivational statement.
Example:
person 1 - "i'm really struggling to all this done in time..."
person 2 - "you're gonna have to gear up mate."
person 1 - "i'm really struggling to all this done in time..."
person 2 - "you're gonna have to gear up mate."