When your mindset is not straight/direct, its tilted. Commonly used in Leauge of Legends where you have to make decisive decisions and not get frustrated by your team members (hence where the tilt factor comes in). This can be used in all video games.
Person playing Leauge of Legends and is on a losing streak: I AM SO TILTED, I am getting 3v1'd repeatedly and no one is helping me and on top of that we are not getting any objectives.
3v1'd : 3 people versus 1 person interaction.
we are not getting any objectives: not getting any closer to be in a winning position or winning.
