Definitions of stud:

noun: poker in which each player receives hole cards and the remainder are dealt face up; bets are placed after each card is dealt
noun: adult male horse kept for breeding
noun: ornament consisting of a circular rounded protuberance (as on a vault or shield or belt)
noun: a man who is virile and sexually active
noun: an upright in house framing
verb: provide with or construct with studs
Example: "Stud the wall"
verb: scatter or intersperse like dots or studs