lol wat.
WoP = Wall of Pain, usually used by Jigglypuff in SSBM. Basically, you create... a wall of pain, lol. You throw someone off the ledge or use an aerial or smash attack (preferably aerial or throw because you'll be closer to them, unless at lower %'s) and, since you have, like, 10 jumps, you jump after them and position yourself correctly so you keep on using aerials to push them to the blast lines. I like doing WoP because it makes me feel cool, lol.