doubleflushing Share definition Flag Going into a toilet minutes after someone has taken a shit and flushing again to get rid of the smell. What kind of rancid shit did you eat? I was doubleflushing that thing for an hour. doubleflushing by kung-fu jesus August 19, 2004 0 0 Get merch Get the doubleflushing mug. Buy Now — $32.95 See more merch