As happy as a clam

As happy as a clam
As happy as a dog with two tails / As pleased as Punch / As happy as the day is long / As happy as a lark / As happy as a king

Felice come una Pasqua 
Felice come un re / Felice e contento

Felice come una Pasqua
As happy as a dog with two tails / As pleased as Punch / As happy as the day is long / As happy as a lark / As happy as a king

Felice come una Pasqua 
Felice come un re / Felice e contento

Felice come una Pasqua
Meanings
Very happy
Examples
The athlete finished "only" eighth at the Olympic marathon, but he was still happy as a clam because it was his first Olympics and he set a new national record
L'atleta è arrivato “solo” ottavo alla maratona olimpica, ma era
comunque felice come una Pasqua perché era alla sua prima olimpiade e ha
stabilito un nuovo record nazionale
When the police found Julia's lost puppy, she looked like a dog with two tails and threw a small welcome party on the spot for all the people there
Quando la polizia ha ritrovato il cucciolo che si era perduto, Giulia era talmente felice e contenta che ha improvvisato una festicciola per tutti i presenti
When I saw the results of the finals, I was happy as the day is long: not only I got an A+, but thanks to that I got a two-year scholarship to study in Florence
Quando ho visto I risultati degli esami finali ero felice come una Pasqua: non solo avevo preso il massimo dei voti, ma grazie a ciò avevo vinto una borsa di studio di due anni a New York
Henry is happy as a clam since he started working in a circus as a clown. He says that making children laugh is the greatest job in the world
Enrico è felice come una Pasqua da quando fa il clown in un circo, perché dice che far divertire i bambini è il lavoro più bello del mondo
No wonder Mark's as happy as a king: he just realized that his lottery ticket won the first prize of ten million dollars. I'm a good friend of his and I wonder if there could be something for me too, then I would be as pleased as Punch myself
Ci credo che Marco sia felice come un re: ha appena scoperto che il suo biglietto della lotteria ha vinto il primo premio di dieci milioni di Euro. Sono un suo buon amico e magari ci potrebbe scappare qualcosa anche per me, allora anch'io sarei felice e contentoOrigin
"Happy as a clam" is short for "happy as a clam at high tide". Clamming is the activity of digging clams out of the sand at low tide, while at high tide it's almost impossible, which makes the whole expression self-explanatory