From Sonic Retro
Sonic Tsunami was an active member of the Sonic 2 Beta ezBoard. He did something to gain the scorn of the then powerful Sonic CulT, and his name became a derogatory term within the scene. He may or may not still be active in the community under a different name.
He is also well-known for his claim of microwaving a Sony PlayStation and getting "SCAAAAAAAAAAAAAARZ".