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1.
an expression used to comment on the stupid actions of someone. can be used with sarcasm or not, though uses of the word in honest relation to smart people are rare.

the reason dumbasses can find the geniusmobile is because it never goes anywhere. there are many people on it, but no one is smart enough to know that to leave for another place, someone needs to drive.
"Oh man, that John Smith is such a retard. He's like, fully riding the geniusmobile today. So impaired."

"I would never have thought of that! Geniusmobile!"
by iusedmyfriendsemailforthis June 02, 2009