wreckosaurus rex Share definition Flag Someone who has been continually wrecked, is down and out, way sketchy, and has nothing going for them after more than one day of being cracked out. Girl! Please! Wake up, get yourself together - I do not need to be seen with a wreckosaurus rex. wreckosaurus rex by NYTMidwest September 8, 2005 Get the wreckosaurus rex mug.