slang (chiefly U.S.). To shut up; be silent. Also to clam up on: to refuse to talk to (someone).
| 单词 | θ149229 | 
| 释义 | the mind > language > speech > taciturnity or reticence > refrain from uttering			[verb (transitive)]		 > refuse to talk to someone (1)		 to clam up on1959 slang (chiefly U.S.). To shut up; be silent. Also to clam up on: to refuse to talk to (someone). | 
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