Terms I don't know yet.

DoT mage is a damage over time mage. Something like Swain would be considered a DoT mage.

Int or inting means intentionally feeding, generally to tell you that you're doing poorly.

A fiesta/clown fiesta is where it's just constant, mindless killing. Mostly no objectives are being down or taken, or they are being done so in rapid succession and there's just a lot going on.

Clown fiesta is when everyone starts doing stupid stuff DoT mage means Damage over time mage. Mage that uses abilities that do damage every sec or so. Swain does a lot of damage over time. Teemo too. Also Malzahar.

inting means intentionally feeding

Clown fiest is when everyone are constantly fighting, no objectives, only teamfights withour reason. Repeating this until death times are so long that one team wins. Basicly stupid stuff. DoT is Damage over Time. Spells that last few seconds, Brand, Cassio, Swain, Singed Inting is intentional feeding. Getting killed on purpose, running down a late to get killed etc

Clown fiesta? That's a thing? How long has that been in use? Been playing since 2009 and I've never heard of it.