An op, a person that did u dirty or just an overall bad person.

a monster from greek mythology, sometimes mistaken by some (bizarrely) as some kinda dragon despite the fact it doesn't have wings and has many heads. Definitely not teal in colour.

Originally a secret branch of the Nazi party. Acting as a deep science division, and lead by Captain America's nemesis, "The Red Skull," Hydra eventually set out to conquer the world using advanced technologies acquired by harnessing the powers of the cosmic cube, but was thwarted by Captain America.

the hydra is a Greek monster that has nine heads ,eight of which are mortal and one of which is immortal, it also has venom that it sprays from its mouth, and has poisonous scales.
Heracles ( Pernounced her-AKLEES) killed it by cutting off its heads and then scorching it with fire so it could not grow back and did this with all nine heads then buried the immortal head.

An untrustworthy person who does you dirty. It is notable that these people are usually of African descent, however this not always the case. We don't fuck with hydras.

Nickname of arguably the best World of Warcraft player in the world, playing the priest class he scored every rank 1 title possible in the game since the release of World of Warcraft arena.

A hydra can be seen as a dragon (one without wings) that has more than one head.