Fanhossauro

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!"