When I saw this daily prompt, I must admit, I didn’t really know what it meant. We may have used the word in spelling lists in school some forty years ago, but I had totally forgotten what it was or what it meant
The dictionary definition is:
(parlay something into)turn an initial stake or winnings from a previous bet into (a greater amount) by gambling:“it involved parlaying a small bankroll into big winnings”
informaltransform into (something greater or more valuable):
“a banker who parlayed a sizable inheritance into a financial empire” ·[more]“an excellent performance is quickly parlayed into lucrative contracts”
a cumulative series of bets in which winnings accruing from each transaction are used as a stake for a further bet.
So, Ok, I get it now, though I am still not really sure how to use it properly in a sentence, but I get the general gist of it