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Fanhossauro (or Fanhosaur in English) is a Portuguese (Br) word meaning a dinosaur with a nasal voice/tone. The T-Rex dinosaur is missing the bottom part of the mouth, hence the nasal voice. It's the combination of the word "fanho" (having a nasal voice) with "dinossauro" (dinosaur).

It became a Brazilian meme: the FEX (t-rex + fanho).
"He speaks like the fanhossauro!"
or
"He is as ugly as the fanhossauro, he needs only now to scream FEX!"
by sheldon'sbrain November 05, 2020
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
by ecogoth December 30, 2020
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