belt up
verb
belted up; belting up; belts up
intransitive verb
British
: shut up
Synonyms
- clam up
- dry up
- dummy up
- hush
- pipe down
- quiet (down)
- shut up
See all Synonyms & Antonyms 
Example Sentences
the schoolboy ordered his mates to belt up about the prank
Word History
First Known Use
1949, in the meaning defined above
belts up
verb
as in hushes
to stop talking the schoolboy ordered his mates to belt up about the prank Synonyms & Similar Words
Relevance
- hushes
- pipes down
- clams up
- dries up
- dummies up
- shuts up
- quiets (down)
- holds one's tongue
- holds one's peace
- calms (down)
- cools (down)
- settles (down)
- hems
- haws
Antonyms & Near Antonyms
- speaks
- talks
- spouts (off)
- speaks out
- talks up
- sounds off
- speaks up
- pipes up