1 definition by weijajo

Top Definition
To be exceedingly happy and content.
The full phrase is "happy as a clam at high tide." Clams can only be dug up at low tides, so at high tide a clam is safer and secure, so therefore, happy.
Everything in my life seems to be going great; I'm happy as a clam.
by weijajo April 07, 2009

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