What are penny slots in social casinos?

The other day, I was arguing with a coworker about how to make a small daily coin balance last a few hours in the evening. He blurted out something about so-called "penny slots." I was really surprised at first because I’d always associated that name with the greasy "one-armed bandits" from '90s American movies where people drop real pennies one by one. But how does this format work in modern online social casinos where we play exclusively with virtual GC or SC?

Should I bother looking for these slots, or are they just an outdated marketing term? Is it possible to spin the reels on them for hours without blowing your entire balance in five minutes? Let me know. Does anyone actually play these? Are they boring? Is it better to just play with normal amounts?

I used to think it was some kind of old-school classic myself. Until I took a closer look at how to manage my coins effectively. I read a short guide on the Sportzino blog how to play penny slots. And really helped me figure things out. These are simply slots that can be played with a minimum coins amount. They let you spin the reels without worrying about quickly running out of credits. Now, I always choose these low-coins games to relax and watch TV. Do you prefer long sessions with minimum amounts?