time suck

or time-suck or time·suck

[ tahym-suhk ]

noun

, Informal.

1. something that takes up too much of one's time:

   Social media is addictive and a huge time suck when I should be studying.

Word History and Origins

Origin of time suck¹

First recorded in 1980–85

Example Sentences

It provides a time-suck while waiting for the bus to arrive, rather than an actual platform for seeking out a meaningful match.

From The Daily Beast