Definitions by wirem@n

GMDTT

GMDTT was first heard about by a player named jaycob on an online game "Maplestory" (Europe)

it was used most of the time in the game forums means GM Delete this thread.

a thread is made asking a silly question or just a spam thread you would see a GMDTT in the comments posted to mark that the thread is not needed.

GMDTT by wirem@n October 18, 2008