A weekend spent drinking, smoking, and doing other unspeakable things. Only to be kept between the people who were there. It looses meaning when everyone else knows about the weekend. Hence the "lost part"
"Hey Dan remember when we had that Lost weekend?"
"Hell yeah man! Shit was crazy"
"Glad we're the only people who know about it"
by Lost Weekend April 2, 2015
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that friend we all have who is constantly too hammered to function.
"Sarah is such a lost weekend. Everytime she drinks with us, she is a shit storm."
by Chelleybelleyy March 18, 2017
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An item taken from the lost and found that was not yours originally.
Check these sunglasses! What a great lost and find!

I was looking through the lost and found for a shirt I lost but I got this sweet lost and find instead.
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a medical term meaning that a surgeon or etc. has lost the person they're doing surgery on; better to say that they've died
We can do it! We can save th-..... Oh. They've died... we've lost them.
by fufufck November 22, 2020
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The point where you have noped to such an extent that you can no longer nope.
Nope I will not read homestuck ever.
But Berry, the buckets!
You know what, I think I just lost nope.
by Charles Morales March 18, 2014
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always high or drunk; follows everyone around swaying (waddling) in a non-annoying way. always cracks the best jokes.
Dude, Sarah is such a lost duckling rn. Get on that!
by BrianBrock December 5, 2018
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