Term to refer to a mans balls after recently being shaved, when the small prickly hairs begin to grow back and poke his penis as it hangs over them.
Guy: Damn, I got the cactus effect. Should've shaved better.
Guy 2: I know, that shit sucks. Feels like tiny needles stabbing your dick.
Guy 2: I know, that shit sucks. Feels like tiny needles stabbing your dick.
by PurplePagan June 7, 2007
Get the The cactus effect mug.The cactus effect is the feeling when you've newly shaved your balls and your sack stings your penis.
by D-bed December 18, 2011
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