Analogy
If I were to say, "Oh, but Woking, please buy me ice cream. Oh, oh, and Woking, please buy me a pony. And Woking, I want a penthouse, a jetplane and my own yacht..." ...and at this point, you'd lose patience and say: "Don't 'Woking' me!". Is 'Woking' a verb? Only in this extremely limited context. Ditto "must (n.)".