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(as) happy as a clam

Very joyful and contented. Look at your sister out there! She's happy as a clam now that she's back in the starting lineup again. I know I'll be as happy as a clam once I get this stupid cast off my leg.
See also: clam, happy

(as) happy as Larry

In very good spirits. The phrase's origin is unknown, but it may refer to Australian boxer Larry Foley. I was as happy as Larry when I found out that I'd gotten an A on my hardest exam.
See also: happy, Larry

(as) happy as the day is long

Very happy; contented. I've been happy as the day is long ever since we moved to the countryside. Johnny's in a bit of a bad mood, but just give him a new toy to play with and he'll be as happy as the day is long.
See also: happy, long

be as happy as Larry

To be in very good spirits. The phrase's origin is unknown, but it may refer to Australian boxer Larry Foley. I was as happy as Larry when I found out that I'd gotten an A on my hardest exam.
See also: happy, Larry

Larry Leadfoot

slang One who drives excessively or dangerously fast in a car. The phrase is based on the expression "have a lead foot," meaning to have a tendency to speed when driving. The image is that of one's foot being made of lead, which is very heavy, and thus pushing down on the accelerator. I've always been a bit of a Larry Leadfoot when I get behind the wheel, so I've gotten my fair share of speeding tickets. Some Larry Leadfoot went flying past me on the interstate and nearly careered into a truck.
See also: Larry, Leadfoot
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

happy as Larry

If you are as happy as Larry, you are very happy. I gave her a police badge to wear on her sleeve and she was as happy as Larry. Note: `Larry' may refer to the successful Australian boxer Larry Foley (1847-1917). Alternatively, `Larry' may come from `larrikin', a 19th century word for a hooligan or ruffian, used mainly in Australia.
See also: happy, Larry
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

(as) happy as the day is ˈlong/as a ˈclam/as ˈLarry

(informal) very happy: Grandpa’s as happy as a clam helping the children to fly their kites.
See also: clam, happy, Larry, long
Farlex Partner Idioms Dictionary © Farlex 2017
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Larry Michael Leable Larry Michael Leable, age 60, of Pleasant Prairie, Wisconsin, passed away from a lingering illness on Wednesday evening, April 17th, 2019, at St.
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Two peas in a pod, Larry's the proud owner of a successful acting career (most notably for Gavin & Stacey and EastEnders) and George - whose dad split from Scots mum Linda when George was a teen - is a TV presenter.
A unique mix of camp charm, catchphrases and gentle innuendo made Larry Grayson one of the bestloved entertainers of all time.
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The ( synopsis for "Will & Grace" Season 9, episode 9, titled "There's Something About Larry," hints at the return of Tim Bagley's Larry from the third season of the show.
It came to Oregon ATM Larry Myers as a wedding gift in 2002, but aside from a few outings and despite relatively good optics, it mostly sat in storage.
in Queensland, Australia I'M A Celebrity's Larry Lamb is battling a whirlpool of emotions over a daughter he has seen only once - more than 46 years ago.
John Hall's delightfully bookish Bibliophilia, Larry Dickerson, a retired New York bank clerk with time on his hands, decides that he's going to become a collector of rare books -- namely, first editions, autographed copies, and the like.