My boss said he was going to fire the person with the worst posture. I have a hunch it might be me.

Make It Land

Keep the Hunch Casual

A hunch is both a suspicion and a rounded posture. The first sentence establishes an office problem; the second sounds like ordinary uncertainty until “hunch” points back to the speaker's stance. Deliver the final sentence matter-of-factly, without miming an exaggerated posture. That keeps the joke focused on the double meaning and makes it suitable for a light workplace conversation.