The effect of not having shaved your usually clean shaven testicles for enough time that they grow short unwanted stubs.
Man, I have cactus balls, and it itches like hell.
by DirtyMexcian September 28, 2010
When it has been a few days since a man has shaved his scrotum and the hair has grown out becoming prickly.
"Last night my man wanted me to suck his nuts and I told him, 'No way, it is time to manscape again. So until you do, I ain't puttin your cactus balls in my mouth!'"
by stitchmata April 21, 2013