Definition of phone it in in English English dictionary
(Should we move() this sense?) to choose to deliver a message by telephone when etiquette demands the effort and respect conveyed by in person communication
(Should we move() this sense?) to make an unseemly timid performance; to be restrained and timid when strident action is called for
To fulfill a responsibility with a minimum effort rather than the appropriate level of effort
If you phone in sick, you telephone your workplace to say that you will not come to work because you are ill. On Monday I was still upset and I phoned in sick to work
If you phone in to a radio or television show, you telephone the show in order to give your opinion on a matter that the show has raised. Listeners have been invited to phone in to pick the winner