C Slammer Share definition Flag A. To slam someone in the cunt. The is to deliver the slam. B. To be slammed in the cunt. This is to be on the receiving end of a C Slammer. That girl just received a C Slammer!!Past tense could also apply - That girl got C Slammed!! C Slammer by Edu Cat October 5, 2012 0 0 Get merch Get the C Slammer mug. Buy Now — $32.95 See more merch