What is good//Buttons

Definition of 'Button Up'

button something up
to fasten something with buttons. Button your shirt up, please. I will button up my shirt.
See also: button, up

button up1. Lit. to fasten one's buttons. Your jacket's open. You'd better button up. It's cold. I'll button up in the car.
2. Fig. to get silent and stay silent. (See also button (up) one's lip.) Hey, button up! That's enough out of you. I wish you would button up and stop gossiping.

http://idioms.thefreedictionary.com/button+up

Buttons

In modern clothing and fashion design, a button is a small fastener, most commonly made of plastic, but also frequently of seashell, which secures two pieces of fabric together. In archaeology, a button can be a significant artefact. In the applied arts and in craft, a button can be an example of folk art, studio craft, or even a miniature work of art.

Buttons are most often attached to articles of clothing but can also be used on containers such as wallets and bags. However, buttons may be sewn onto garments and similar items exclusively for purposes of ornamentation. Buttons serving as fasteners work by slipping through a fabric or thread loop, or by sliding through a buttonhole. Other types of fastenings include zippers, velcro and magnets.

http://en.wikipedia.org/wiki/Button

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