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When someone wears a bikini at the beach and doesn't shave their privates.
"Yo do you see that bikini sideburn?! It's like Cousin Itt moved in!"
"From the looks of that bikini sideburn, she's waiting for the bird's eggs to hatch!"
"That Bikini Sideburn looks like Hulk Hogan's hairline!!!!! SICK"
by SheevaAf August 21, 2015
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