look up any word, like dirty sanchez:

1 definition by weijajo

 
1.
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