It's a brown ale called "Caribou Slobber." I suspect it's a rip off of Moose Drool.
Once upon a time I was making sugar mash for a cheap drink. Usually I'd let it sit outside in the cold for a few weeks after it finished gassing off, letting the yeast gunk settle. This particular time I needed the space for another project, so I skipped right to bottling. I filled a few dozen 1L Gatorade bottles with the mash for want of a better kind of container.
I had never worked with a carbonated brew before, and I made the mistake of bottling cold, and storing at room temperature. Came back a day later to open one, and it exploded when I picked it up, not even getting around to removing the cap. Soaked me, and everything within 10 feet in cheap sugar malt liquor.
So there I was, hand stinging, holding the shredded remains of a plastic bottle, staring at several dozen 1L stink bombs that I couldn't pick up without detonating. I spent the next 8 hours of my life finding the least messy way to detonate a pressurized Gatorade bottle (slide them off the table into a 55 gallon trash bag with holes in the bottom, and a bucket underneath).
Moral of the story: bottle at storage temps, don't bottle early, and bottle in glass.
Glass won't necessarily save you there. I once tried to make a lager that hadn't quite finished when I decided to bottle. I didn't discover that I had made potential grenades until I decided to give some to co-workers and they exploded in my truck while we were working. Luckily, only the ones I brought exploded, but the rest became the saddest volcano ever when you opened them.
One of our first brewing attempts was a hard cider for the wife. I took some to my dad to show off what we made. He put one in the fridge to cool down and it ended up exploding, shattering the bottle and the glass bottom shelf, coating their brand new fridge in cider. I don't know if we bottled it before fermentation was done, or we had an infection. It was kinda fun to dump the other bottles out. I would pop the cap off real quick and the cider would just shoot out of the top basically emptying the whole bottle without having to turn it upside down.
I knew someone who did this until he had one explode. I didn't ask why or how, but apparently it was quite the mess to clean up. 😂
Probably an extremely vigorous fermentation that made the airlock pop off. Sometimes you need a plastic hose going into a bucket of water or star-san instead of a regular airlock.
Good luck and have fun, but home brewing can be quite the rabbit hole. My wife and I used to brew but we stopped because we weren't really drinking anymore. Also we were to the point where I needed to build a temperature controlled fermentation box to be able to brew in the summers. We were doing half size batches (2-3 gal) every Sunday for 3 months or so just to practice brewing, but just got tired of it.
I'm hoping to keep this a casual hobby. The closest supply store is a little over an hour away, so I don't see myself brewing all that much.
It's going to spill out if you don't turn it 90°.