A moose knuckle is the shape formed by prodtruding labia majora(pussy lips) and the clitoral hood (the hood). Moose knuckles are big and gnarly in nature.
fat camel toe, stage meat curtains, big whisker biscuit, extra large pink taco, a mighty beaver, flabbly labbia, etc....
Your mom's hairy moose knuckle came down from the sky!
Don't tell your woman she has a moose knuckle unless you never want to see it again!