be as happy as Larry/a sandboy

British & Australian, American

to be very happy and to have no worries.

We married nine days after we met, and three years on we're happy as Larry.

Since he's been at college he's as happy as a clam.

• at stake
• attend to
• attend to someone
• attend to something
• at the back of beyond
• at the back of mind
• at the back of your mind
• at the best of times
• at the bottom of the heap
• at the bottom of the ladder
• at the bottom of the pile
• at the chalkface
• at the coalface
• at the crack of dawn
• at the cutting edge
• at the double
• at the drop of a hat
• at the eleventh hour
• at the end of the day
• at the expense of
• at the expense of something
• at the hands of
• at the hands of someone
• at the helm
• at the helm of