Definition of (as) happy as a clamUS, informal
- She spent the afternoon reading and was (as) happy as a clam.
: favored by luck or fortune : fortunate
: notably fitting, effective, or well adapted : felicitous
: enjoying or characterized by well-being and contentment
What made you want to look up (as) happy as a clam? Please tell us where you read or heard it (including the quote, if possible).