After a man has shaved his sack and it begins to grow back producing stubble resembling the prickly bits of a cactus.

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The prickly feeling you get after the hair has grown in on your scrotum after having shaved recently as the skin tightens up, especially when cold.

when the hair on your nuts resembles
the prickly needles of a cactus, as a
result of going extended lengths of
time between shaving.

1.) The act having sex with a cactus, usually in a desert in Arizona. When the male party is about to climax, he forcibly shoves his testicles against the cactus' most sharp needles. As he ejaculates onto the cactus, he then removes his testicles.

2.) Someone who performs this act.

3.) A red penguin with large nipples.