slip (one's) mind

(redirected from slip their mind)

slip (one's) mind

To forget something, I'm sorry I didn't call you back sooner, it totally slipped my mind.
See also: mind, slip

slip one's mind

[for something that was to be remembered] to be forgotten. I meant to go to the grocery store on the way home, but it slipped my mind. My birthday slipped my mind. I guess I wanted to forget it.
See also: mind, slip

slip one's mind

Be overlooked or forgotten, as in I meant to pick up the wine but it slipped my mind. This idiom was first recorded about 1340.
See also: mind, slip

slip your mind

If something slips your mind, you forget it. I was supposed to call her this morning and it slipped my mind. The reason for my visit had obviously slipped his mind.
See also: mind, slip