phone it in
敷衍了事；不认真对待工作或任务
口语·批评敷衍行为
英文释义
to do something with minimal effort or enthusiasm
例句
He didn't prepare for the presentation and just phoned it in.
典故来源
源自20世纪美国，原指演员通过电话远程表演，后比喻缺乏投入、敷衍了事。