Eat your lunch - When your competition steals your customers because you're t

When your competition steals your customers because you're too weak to keep them.

My boss said, "Your lunch is gone, loser!" when I lost the big client.

They said, "Eat your lunch, you're not even trying!" after I messed up the pitch.

I told my coworker, "You just got eaten for lunch!" after he left to join the rival company.