Rectal Spasm Share definition Flag When ecto gunk explodes from the rear. "Dayum, I was just chillin, mindin mah own business, when all of a sudden I had a rectal spasm! That shiz is messy!" Rectal Spasm by Squaddeh June 21, 2012 0 0 Get merch Get the Rectal Spasm mug. Buy Now — $32.95 See more merch