have all one's buttons

have all (one's) buttons

To be mentally sound or stable. Now that I've gotten a good night's sleep, I'm starting to feel like I have all my buttons again. Grandma still has all her buttons in spite of her other health problems.See also: all, button, have

have all one's buttons

Also, have all one's marbles. Be completely sane and rational. For example, Grandma may be in a wheelchair, but she still has all her buttons, or I'm not sure he has all his marbles. These slangy expressions date from the mid-1800s, as do the antonyms lose or be missing some of one's buttons or marbles , meaning "become (or be) mentally deficient." See also: all, button, have