She'll be all over us again.

Darryl: He's a what?

Leo: An ex-demon. But he still has powers, so be careful. You don't want the cops to provoke him too much. He could take out half the force.

Darryl: If Sheridan finds out, that could be a trigger.

Leo: Sorry?

Darryl: For her memory. If she remembers she was after them, then she'll be all over us again.

Leo: Oh, then, you can't let her find out.

Could you tell me what "she'll be all over us" here means?