(to be) a happy camper slang
A person who is pleased and satisfied with their state of affairs.
Last night, a thief broke into his house and stole his motorbike. He was not a happy camper.
I could tell you were not a happy camper after having to wait for such a long time, but you still couldn't buy what you wanted.
John confessed his love to the girl of his dreams, Mary. The confession was accepted. That's why he looks like a happy camper at the moment.
This term originated from the second half of the twentieth century and initially referred to a summer camp attendee. It is frequently used negatively, such as when business is down 40% during the week.
A humorous way of saying that what one has said is just what they acknowledge and may not be entirely accurate
Mike: Have you returned from your vacation on the beach? Your skin seems to get tanned.
Jenny: My skin is always dark. That's my story and I'm sticking to it!