Having your act together, being professional, and/or conducting extensive, appropriate, and effective planning. This definition is distinct from another meaning — quiet, non-transparent, secretive, etc.
Unlike in India, the train system in Europe is buttoned up—trains run on time, bathrooms work, conductors check tickets, and accidents are rare.
when someone calls you on your cell phone and you do not want to talk to them you hit the side button to dismiss their call and direct them to you voicemail.
"Anthony's calling again, hes about to get bitch buttoned." "hopefully he gets the point and stops bugging."