What exactly does Carnage mean by "Power Up"?

Question

In Venom: Let There Be Carnage (2021) @01:11:08, at the cathedral, Carnage and Venom are battling each other while Detective Mulligan uses a lift to reach the top.

Then, Carnage grasps the priest and commands him:

Carnage: Power up.

What exactly does Carnage mean by "Power Up"?

Answer 1

He's not commanding the priest to power up, he's referring to the priest as a power-up, e.g.

an object that adds temporary benefits or extra abilities to the player character as a game mechanic.

When he eats the priest's brains, he'll be stronger than he was before.