"Chicks can kinda see, like the boarders and outline of my dick a little. The camel tail"
When a male's clothing or lower apparel are too tight to go un-noticed, making unsightly bulges and or definitions of the "southern region".
Girl 2: "Gross! That's the most massive Camel Tail I've ever seen!
"Steve's new pants hugged his man parts just so, that it almost seemed to give him a Camel Tail."