Wiktionary
vb. (en-past of: button up)
Usage examples of "buttoned up".
She remembered what Casper had told her about keeping her lip buttoned up.
He was very short, very thin, dressed in khaki drill, and the only use he had for his facial muscles was to keep his expressions buttoned up for he didn't even bat an eyelid when he saw us.
He was dressed in a blue frock-coat, buttoned up to the chin, and wore at his button-hole the rosette of an officer of the Legion of Honor.
In the living room Victor Henry sat buttoned up in white and gold, reading Navy correspondence by lamplight.
Japanese, in a long-sleeved plaid shirt buttoned up to its oversized collar.
He kissed her, then buttoned up his coat and set off down the steep hill toward Universitatstrasse.
They were clad in uniforms that made them look extra brave: red tunics buttoned up high under the chin, black trousers with a gold-and-red stripe up the outer seam, and shiny black boots.
Slote guessed she must have a fever: red spots in her cheeks, glittering eyes, intermittent cough, gray cardigan buttoned up tight.
By the time Jake had gone from room to room, making certain that the cottage was buttoned up, she no longer felt like throwing up.