Lap Guilotine Share definition Flag When a male crosses their legs to far thus creating a Guilotine for the testicles. Bro: Dude what's your problem? You: *in pain* I just caught myself in a lap guilotine Lap Guilotine by Jonie loves chachee January 13, 2013 0 0 Get merch Get the Lap Guilotine mug. Buy Now — $32.95 See more merch