Definition of "cocks"

If Mrs. Dyott was fond of ancient French furniture, and distinctly difficult about it, her inmates could be fond—with whatever critical cocks of charming dark-braided heads over slender sloping shoulders—of modern French authors.

1901, Henry James, The Story in It

The guests run hands over twitching boys, suck their cocks, hang on their backs like vampires.

1962 , William S. Burroughs, Naked Lunch, New York: Grove Press, page 80