Time-wasting

Then a little time-wasting idea came to mind.

Source: tatoeba (636437)

Let's not dissipate our efforts on pointless and time-wasting schemes.

Source: tatoeba (11255843)

Shaw's dismissal did little to help England's cause late on. The defender picked up the first of his two yellow cards in the 78th minute for time-wasting when preparing to take a throw-in and the second came just two minutes later for a mis-timed challenged on Retegui.

Source: wiktionary