brainstormfest Share definition Flag A group of epileptics in a room with flashing lights have a little party on the floor OMG they are all at a brainstormfest on the floor "PARTY TIMEEE" brainstormfest by The evil Brainstormer December 7, 2009 0 0 Get merch Get the brainstormfest mug. Buy Now — $32.95 See more merch