happy as a clam – Originally happy-as-a-clam-at-full-tide; it may refer to the fact that when the tide is full, nobody is digging clams.See also related terms for tide.Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
happy as a clam – Originally happy-as-a-clam-at-full-tide; it may refer to the fact that when the tide is full, nobody is digging clams.See also related terms for tide.Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.