A elephant knuckle occurs when a camel toe grows to phenominal size.
Man screw camel toe, that things an Elephant Knuckle!
by Loonybread June 01, 2010
The bulbous labia majora protruding from a females nether region while wearing pants, jeans, etc.
Her pussy is so big I could see her elephant knuckles through her swim suit!
by Andy Gallo August 22, 2006