[surf clam] n (1884): any of various typically rather large surf-dwelling edible clams (family Mactridae); esp: a common clam (Spisula solidissima) of the Atlantic coast chiefly from Nova Scotia to So. Carolina
SURF CLAM
Meaning of SURF CLAM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012