fasten with a button or buttons; close well
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Button up Definition from Language, Idioms & Slang Dictionaries & Glossaries
button up
v : refuse to talk or stop talking; fall silent; "the children shut up when their father approached" [syn: close up, clam up , dummy up, shut up, belt up, be quiet, keep mum ]
[ant: open up]
Verb
1. refuse to talk or stop talking; fall silent; "The children shut up when their father approached"
(synonym) close up, clam up, dummy up, shut up, belt up, be quiet, keep mum
