Search Result for "belt up":
Wordnet 3.0

VERB (1)

1. refuse to talk or stop talking; fall silent;
- Example: "The children shut up when their father approached"
[syn: close up, clam up, dummy up, shut up, belt up, button up, be quiet, keep mum]



WordNet (r) 3.0 (2006):

belt up
    v 1: 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, button up,
         be quiet, keep mum] [ant: open up]