noun. male or female who is a monster at dating, whether it be the same or opposite sex. They go on dates frequently with many different people. Aforementioned dates are not aware at the time of what a handful said "dateosaurus rex" can be. Usually once the date is initiated, it is too late.
Bob: What are you up to tonight man?
Adam: I got a date with that new girl, Reese.
Bob: Jesus man! You're like always out on dates!
Adam: Naw....
Bob: No man, you are totally a DATEOSAURUS REX. They have no idea what they're in for. Do they?
Adam: Usually not man, usually not.
by ressaler August 17, 2008
noun. male or female who is a monster at dating, whether it be the same or opposite sex. They go on dates frequently with many different people. Aforementioned dates are not aware at the time of what a handful said "dateosaurus rex" can be. Usually once the date is initiated, it is too late.
Bob: What are you up to tonight man?
Adam: I got a date with that new girl, Reese.
Bob: Jesus man! You're like always out on dates!
Adam: Naw....
Bob: No man, you are totally a DATEOSAURUS REX. They have no idea what they're in for. Do they?
Adam: Usually not man, usually not.
by Ressaler August 17, 2008

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