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UDTT (or "Urban Dictionary Trash Talker/Talk") is an abbreviation referring to someone who posts definitions to that are not creative or allowed.

These definitions usually are a persons name and the publisher complaining about these usual things: the fact that they're annoying, egotistical, ugly, socially awkward, or stupid.

The victims of a UDTT usually are high school students.

The fact that UDTTs have to post a definition on Urban Dictionary to trash talk someone really shows how much of a pussy they are.
Nerd: "I'll show Chad by posting a definition on Urban Dictionary! That'll teach him to be better than me!"

Chad: "Wow Nerd is such a UDTT."
*proceeds to get ALL the pussy*
by OwMyBodyHurt April 09, 2019
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