Anything which takes up a lot of your time. I can be homework, a diy project, a tv show, or even a ridiculously long nap. It can be enjoyable, or even productive, but it requiers sinking a lot of time into it... therefore timesink.
I decided to start baking my own bread... didn't realise it was such a timesink.
1) All this homework is making me timesick; I wish we could just go back to kindergarten when our hardest assignment was coloring inside the lines.
2) I'm timesick. I wish I could just fast forward to after graduation.
Something that takes a lot of your time and effort in order to be completed. Fequently used in MMORPGS to make customers play longer, thus making them pay more. Time sinks are very, very, very, very, very bad.
DAOC or Dark Age of Camelot is the king of the time sink.
I have been trying to level this artifact for the past 10 years. I love this timesink.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.