Extremely content and satisfied.
This phrase is actually a shortened version of 'happy as a clam at high tide,' which makes much more sense - clams are safe from predators when covered by high tide water. The saying emerged in 19th century America, but the full version explaining why clams would be happy was often dropped, leaving the seemingly nonsensical short form.
The full phrase 'happy as a clam at high tide' reveals the clever logic behind this comparison - clams are literally safer and more comfortable when the tide covers them, protecting them from being harvested. It's fascinating how the shortened version became more popular despite being less logical, showing how language efficiency sometimes trumps clarity!
Complete word intelligence in one call. Free tier — 50 lookups/day.