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1.
Similar to the the Awkward Turtle, scary kitten is used to describe someone who is being mean or bitchy. Made by making a fist with both hands (thumbs out)and putting them together wrist-to-wrist in order to make a mouth. Then followed by biting motions of the hand.
A: Jeez, Jake was being a real ass today...
B: Yeah, I know. it was real scary kittens.
by Blake Austin January 08, 2007