Top Definition
Puppy Sized Elephants are the animal John Green suggested in his open letter to evolution since it would have the evolutionary advantage of being adorable.

See the Vlogbrothers channel on YouTube for more info.
Nerdfighter: "Man, I wish puppy sized elephants existed."
Evolution: "I'll get back to you on that."
by RobotAmputee August 24, 2010

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