The word dally has a number of meanings. To dally can be to physically linger or dawdle, or to waste time. Dally may also mean "to act playfully," especially in a romantic sense, or "to deal with something lightly or in a way that is not serious."

// Three members of the hiking group were dallying and didn't arrive at the overlook until others were already starting to head back to the trailhead.

// Alton has been dallying with the idea of starting a bakery.

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"Just as businesses that dallied too long before moving into the era of computing lost ground and eventually faded away, companies that delay in adopting the technologies of the future will find it impossible to keep up with those that take the necessary steps quickly." — Pritom Das, Entrepreneur, 21 May 2021

English speakers have been futzing around with dally since the late Middle Ages. They first started using it to mean "to chat," which was also the meaning of dalier, the Anglo-French word whence it came, but this sense fell into disuse. Next, they applied it to acting playfully with someone especially in amorous and flirtatious ways (the noun dalliance, meaning "an act of dallying," is to this day often used for situations where people get all smoochy and whatnot). The idea of more figurative flirtatiousness soon led to a sense of dally meaning "to deal with lightly or in a way that is not serious." Finally, by the mid-16th century, perhaps because fuddy-duddies saw all of this fun and frivolity as a waste of time, dally gained the additional meanings of "to waste time" and "to dawdle."