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1.
A question used to show how you have no idea what someone is talking about. It comes from Wheel of Fortune when a contestant does not know the correct answer so they say "Can I buy a question mark?" instead of "Can I buy a vowel?"
Teacher: What is a detriment of space reconnaissance?

Student: Can i buy a question mark?
by Sizzle15 April 03, 2011
36 15