Definition

The cosmic jerk move where fortune smiles at you for exactly 2 seconds before yanking the rug out from under you. You win the raffle and then immediately drop your prize—that's luckunluck'd.

Example Usage

I found $50 on the ground but then stepped in a puddle and ruined my new shoes—total luckunluck situation.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=luckunluck&defid=15538865)