A person who is incredibly optimistic and high on life. They are usually peppy and make the best out of every situation. They're fun to be around and can brighten anyone's day.
Wouldn't we all want to be as Happy-Go-Lucky as her?

She is the most Happy-Go-Lucky person I've ever met.

He just had his heart broken and yet he's still so Happy-Go-Lucky.
by Nessanessness March 26, 2011
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To be happy go lucky, is to be cheerful about most all things. To have a positive view on life. To annoy the shit out of your friends, and to just be a peppy shithead.
Ugh, that Richard Simmons is SOO happy go lucky, he makes me sick!
by hey fat kids April 2, 2007
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Going at it; either sexually or with vigor.
He gets happy-go-jacky on the big white guy like a donkey eating a waffle. As used on SNL Sporscenter Skit.
by Emily A November 11, 2007
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A person who is a pleasure to be around.
They dont sweat the small stuff.

They tend to laugh easily but not forceably so. They tend not to care about trival matters.
They are most always well adjusted and have no anger issues.
Its Hot and Humid out. A happy go lucky person says this is going to be a great day by the pool.
They dont Bitch about how humid it is.
by thederby September 3, 2019
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Where you go around so fucking fast and end up laughing so hard that you have to do the abdominal voorheaves and a TREMENDOUS technicolor yodel all at the same time.
That dumb mother fucker spun around so fast on the tilt a whirl that we knew he had Happy Go Pukey syndrome when he got off and called hughie at least 30 times
by RSE February 26, 2003
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