KNOW WHETHER ONE IS COMING OR GOING

{v. phr.} To feel able to think clearly; know what to do. - Usually used in the negative or with limiters. * /On Monday, the car broke down; on Tuesday, Mother broke her arm; on Wednesday, the children all became ill with the mumps; by Thursday, poor Father didn't know if he was coming or going./ * /My cousin is so much in love that she scarcely knows whether she's coming or going./ Compare: IN A FOG.