I've seen this expression in Dota 2 and League of Legends and I've heard streamers say it.
"I'm Tilting" or "I'm on Tilt" are examples of the expression in use.
What is the meaning of this expression?
And in what situations can it be applied?
Tilt originated from Poker and it's usually a state of emotional frustration and confusion.
It's most commonly used if you're going on a losing streak and then you become so frustrated that you start playing worse because you cannot focus anymore.
The Dignitas Blog wrote a nice article about tilting and how to prevent it.
"Tilt" originates from pinball tables, where altering the slope of the table would affect the path of the ball. As this is essentially cheating, pinball tables were designed with a tilt sensor, which when triggered would disable all scoring mechanisms (and usually the flippers as well), forfeiting any further action with that ball.
A player that's frustrated may shove the table in anger, triggering the tilt sensor. (Gentle nudging was a common tactic, if one was familiar enough with a particular pinball table to know the sensitivity of the sensor.) So the expression "on tilt" started to be used to mean a player who's lost his cool.
"On tilt" is a term used to describe a negative emotional state that clouds a person's judgement and leads them to continue to make mistakes, often growing in magnitude as the player's frustration mounts.
The term is often used in reference to gambling, as well as competitive games many sorts, including video games and poker. Wikipedia has an article dedicated to the use of the term in the context of competitive poker play.
When your so pissed off from losing multiple amount of games that you play worse and worse till your so pissed you begin leaning over your keyboard screaming over every little mistake you make and complaining about gaming imbalances
urbandictionary (i know there are spelling misstakes in the text! I just copied it how it was)
My words:
It's a state of mind that blocks or blurs your rational thinking, which leads to bad decisions. It is often caused by doing something not as desired or when your under pressure (being flamed, screamed at by parents, ...)