A: Hey! I didn’t want to go to Arnold’s party, so I told him you were too tired to go and that you asked me to also not go.

B: Don’t blame me for you not wanting to go! You always throw me under the bus like that. I’m going to go to the party and tell him I have no idea what you were talking about.

Note: To throw someone under the bus is to criticize, blame, or punish them, especially in order to avoid blame or gain an advantage. People so thrown are typically in a vulnerable position.

The phrase’s origin is uncertain, but it likely got its start in British politics, where the phrase “under a bus” was already in use as a metaphor for misfortune or a conveniently timed accident.