Answer:
a bear claw (guessing this came from the fashion police ad with joan rivers) is when a guy wears tight pants that split his balls, making it look like a bears claw.
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Actually a "bear claw", deals with a woman's whose pants fit too tightly, and it is a version of the "camel toe" but instead of "two divisions", there are "three divisions".
The male version is referred to as a moose knuckle.