It is used in the term "life hacking", yes. Originally I had an explanation in the post but I cut it for length (and relevancy) so here's what I was up to: Casinos give out free "slot credits" like candy. I got $30 dollars for taking the bus to AC, $80 for eating at a certain restaurant, etc. The trick is you cannot cash out your credits, only play them, but you can-- of course-- cash out your winnings.

Except the odds of you winning anything over pocket change are astronomically low, so most people gamble away not just all their credits, but all their winnings and some of their own money to boot. That's why the casinos are so eager to give you free credits for everything.

What I was doing was playing the penny slots on the lowest bet level and cashing out anything over ten cents. I was making about 60 to 70 cents on the dollar ... which sucks if it's your dollar, but the whole point was it WASN'T. I was using the slots to convert the casinos free credits to cash.

......Not what I would have done if given free choice of activity, but like I said, my friends wouldn't let me play blackjack :D If I have to sit for hours while the bride-to-be brags about her bullshit "system" for hitting jackpots, I might as well make a little money.