1 definition by Sid!
Acronym: Thread With Extraordinary Survival Instinct Syndrome.
Typically applies to threads in bulletin-boards/forums that are active over an unusually long period of time.
Typically applies to threads in bulletin-boards/forums that are active over an unusually long period of time.
Example: This Happy Birthday thread is just another to be affected by TWESIS! Few birthday threads last this long!
by Sid! November 15, 2005