He is shooting up in his room.

She is toughening up her body by going to the gym every day.

The security measures were tightened up after the recent breach.

He drummed up support for the charity event.

He is drumming up support for his new business venture.

He is tightening up the screws on the machine.

She tightens up the screws on the machine.

The ice is melting up quickly in the warm weather.

The ice cream melts up quickly in the sun.

Regular exercise toughens up your body.