1. An expression used to explain something that is extremely obvious. It is the exact opposite of the expression: "Finding a needle in a haystack".
2. A novel by Stephen Jay Gould entitled: "Dinosaur in a Haystack : Reflections in Natural History".
1. Hipster 1: Dude, I can't find my Hey Arnold dvd's anywhere.
(They lay in the middle of the floor)
Hipster 2: Yeah dude, it's like finding a dinosaur in a haystack.
2. Hipster 1: Have you read "Dinosaur in a Haystack : Reflections in Natural History"?
Hipster 2: No.