It has been suggested that open clams give the appearance of smiling. The derivation is more likely to come from the fuller version of the phrase, now rarely heard - 'as happy as a clam at high water'. Hide tide is when clams are free from the attentions of predators; surely the happiest of times in the bivalve mollusc world. The phrase originated in the north-eastern states of the USA in the early 19th century.
According to phrases.org.uk:
ReplyDeleteIt has been suggested that open clams give the appearance of smiling. The derivation is more likely to come from the fuller version of the phrase, now rarely heard - 'as happy as a clam at high water'. Hide tide is when clams are free from the attentions of predators; surely the happiest of times in the bivalve mollusc world. The phrase originated in the north-eastern states of the USA in the early 19th century.