have all (one's) buttons(redirected from has all his 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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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."
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.