A thot was a high-ranking military officer in the Breen Confederacy, who could also hold political power.
In 2375, Thot Gor represented the Breen Confederacy in its negotiations with the Dominion. When Thot Gor was asked by Damar whether his rank was equivalent to a Cardassian legate, Gor responded by informing him he should have his universal translator adjusted. (DS9: "Strange Bedfellows")
After the Second Battle of Chin'toka, Gor was succeeded by Thot Pran. (DS9: "Tacking Into the Wind", "What You Leave Behind")
A third Thot was created as a playable "character" for the video game Star Trek: Conquest, named (perhaps as a joke) "Thot Rong (β)".