turn round/around and do something

turn around and (do something)

To suddenly do something that is unexpected and often undesired. I was expecting a slap on the wrist or something for making such an inappropriate joke, but then they turned around and fired me! I was so shaken after she turned around and shouted at me during dinner.

See also: and, around, turn

turn round/around and do something

(informal) say or do something unexpected and unfair: He just turned round and told her that he was leaving. She couldn’t believe it.

See also: and, around, round, something, turn