Swang

Large; paticularly in the context of a large penis.

Can also be used to mean any size of penis hanging down loosely or otherwise oscillating.

Originates from the pendulous 'swinging' motions, paticularly of an extremely large penis. Similar origin, usage and definition as Hung.

"Oh, you know Kevin? I bet his dick SWANG"
"TFW you walk 'round the house straight swangin'"