go as

go as someone or something

to pretend to be someone or a type of person. There's a costume party this weekend. I'm going as Santa Claus. My husband and I are going as a king and queen.
References in classic literature ?
I think it was so splendid in Father to go as chaplain when he was too old to be drafted, and not strong enough for a soldier," said Meg warmly.
Don't I wish I could go as a drummer, a vivan--what's its name?
Flowers are always good, so is chocolate, anything is pretty much a go as long as it isn't a computer virus.