What is Gmdtt?
1.
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.
See
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One Of the Hottest rappers out representing NC and KR plus SSS! The album dropping, go cop it!
Yo, you heard that new Young Legz joint?..