Tilt

Meaning (in video games):
To have less score than required for your rank or a different goal, or to drop to a rank below

An example from Brawl Stars:

Dude, I tilted my Barley (brawler)! It's now 487 trophies and I was already at 500, which is rank 20! Now I'm rank 20 but I have 487.

Toxic

A person, who is taunting, mocking and trashtalking you after he beats you in a game. Can be usually found in 1v1 Online game matches, especially ranked.

Haha I beat you, you're trash
Stop being so toxic