When it comes to expressing the concept of something taking up a lot of time, there are plenty of synonyms to choose from. A common phrase is "time-consuming," but other options include "suck up time," "waste time," "use up time," "devour time," "swallow time," "absorb time," and "take up time." Each of these phrases can be used in different contexts and can convey varying degrees of frustration or urgency. For example, "devour time" may imply more urgency than "absorb time," while "waste time" may suggest a greater sense of frustration or annoyance. Regardless of which synonym is used, the overall sentiment is usually the same--that something is taking up a significant chunk of time and may be seen as a burden or hindrance.