Longman Dictionary of Contemporary English homepage

clam

2 verb
     
clam2 past tense and past participle clammed, present participle clamming

clam up

phrasal verb
informal to suddenly stop talking, especially when you are nervous or shy:
A sensitive child is likely just to clam up.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary results for "clam"
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