A retarded person that has the last name "Quintin". Usually this person is described as oblivious to what's going on, sometime thinking something bad is good, and just overall retarded.
Quintard: "Okay guys, quite down. Here's your test. No cheating."
Student 1: *Gets handed test*
Student 2: *Gets handed test* "Yo what's the answer to the multiple choice."
Student 1: "I'll tilt my paper up and you just stand up and look over my shoulder to see my answers when I'm done while I'm "double checking"."
Student 2: "What? Won't we get caught?"
Student 1: "No. Our teacher is Quintard, she doesn't know what the fuck is actually happening."
Someone, or something, beyond the normal realms of retardation, fotardation, botardation, xtardation. This entity is so supremely "tarded" that it is, in all likelyhood, not real.