(Something that I made up and do in school.)

Jewel thiefing is when you quickly steal an item from a friend's desk or hand, then say "Thanks."
*Friend writing a paper*

*Takes pencil from friend's hand*

Me: Thanks.

Friend: Dude what the fuck.

Me: Dude, I'm just Jewel Thiefing, calm down.
by Dainbow Rash August 30, 2012
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a large eared, bandana over eyes wearing scoundrel specializing in the heisting of super jewels. Come in packs of three or two, never alone.
"OMG someone stole the largest diamond in the world! Who could have done something like this!?"
"The super jewel thief maybe?"
by Winter Fox Frank April 25, 2008
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