Top definition
a very creepy pedophile, preying upon the wee children.
"have you seen my kid?"
"no, sorry"
in whispers;
"holy shit, theres a guy carrying a bag of candy with no kid. he must be a predatrous rex"

OR

"omg, the teacher was rubbing my shoulders in class"
"ew, whatta predatorous rex"
by itsellinow (L) December 13, 2009
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