Example 1:

I climbed mount everest without mount picks or a jacket. What am amazing feat for me!

Thunder Thief would say to everyone "Oh yeh, i did it without shoes, food or oxygen!"

Example 2:

You would say something like this to a group of your friends "I made the best cookies today."

Thunder Thief would say "Whatever they were total garbage. They were crusty and gross."

Reply: You are such a Thunder Thief.

I've been jabbed

Edward stole my expression. He's such a thunder thief.

"Dude, is that Taylor using Keith's board to do a 360 in the foyer just so Carrie can see?"
"Ha! Yeah, that punk is such a thunderthief."
"Total showgart."
"Total."

Kevin is such a thunder thief, he just took credit for my new idea.