Okay, you have a super soaker and some flammable liquid, what do you want to do? Have a barbeque and squirt your neighbors with water? No, why not combine the two?
Watch this here video to see how to make a long rage flamethrower using household items, i.e. lighter fluid and a water gun. if you think you're an idiot, then join these other idiots (hey, the video says it itself) with some fire fun. This is dangerous, so be careful. Gas squirt gun flamethrowers can hurt people.