happy as a pig in muck

(as) happy as a pig in muck

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

happy as a pig in muck

BRITISH, INFORMAL
If you are happy as a pig in muck, you are very happy. From day one I adored it. I was as happy as a pig in muck. Note: This expression has several variations. For example, some people talk about being happy as a pig in shit. I'd much rather be as I am, I couldn't imagine being any different. Happy as a pig in shit. Frankly, I was like a pig in shit — oh, how I revelled in the opportunity of standing next to famous people!
See also: happy, muck, pig
References in periodicals archive ?
After winning the Munster U21 Championship I believe he was rolling around on the ground, happy as a pig in muck," said Quirke.
I'd been happy as a pig in muck all morning so come on, I said, make a coffee and take a deep breath - it'll get better, the doctor isn't daft.
PRINCE William was as happy as a pig in muck yesterday as he tended his father's prized Tamworth porkers.
I've now bought Respect his own radio tuned in to his favourite station and he's as happy as a pig in muck.