(idiomatic, slang, vulgar) Exuberant or enthusiastic, especially to an excessive degree; brazen.
“I hated leaving Mort today. He was full of piss and vinegar this morning and I got to do lots of pets, cuddles, fetches, and rough housing. I checked my camera after I left and I got to see the zoomies I missed out on. I think another dog answered his barks.”
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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