bumfungle Share definition Flag To mess up completely, without being able to fix.Clusterfuck, for 6 year olds. There's thousands of puppy dogs in my house, what the hell am I going to do about this bumfungle! bumfungle by Bullshit@rtist November 2, 2009 0 0 Get merch Get the bumfungle mug. Buy Now — $32.95 See more merch