When a group of men get together and stack their scrotoms up on top of each other. Like a Totem Pole only with scrotoms instead of totems. See also, sack stack.
guy #1: "This party sucks. I'm bored. What should we do?"
guy #2: "Who's up for a Scrotom Pole?"
guy #1: "OMG, like count me in!"
guy #3: "I got the camera. This is goin' on Youtube."
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