Resembling a penis similar to that of a pig or boar. It is a long thin penis that often has somewhat of a corkscrew look that is amusingly similar to a pig's curly tail.

(3rd row from the top, 1st on left)

    There once was a man called Screwy Nick
    Who was blessed from birth with a corkscrew prick
    He spent his life in a desperate hunt
    To find a woman with a corkscrew cunt
    But when he found her, he dropped down dead
    Because her corkscrew cunt had left-hand thr...