- last post: 01.01.0001 12:00 AM PDT
ROFL means rolling on floor laughing. A good one for screams is the old waterballoon prank. Get 2 water balloons, fill one with vinegar, one with baking soda/water mixture. Put it under the back of the toilet seat, and the whole stall gets foamy when someone sits down. Hard to pull off, but definitely worth it. :)