Episode 05 Season 16 Moaning Mountain Biker Flop World's Dumbest Season 16 - Ep. 05 A nervous mountain biker tries to compete with his more experienced friends. Replay Share 5 Up Next Race Cars Flip And Burn World's Dumbest Season 16 - Ep. 05 Up Next World's Dumbest Race Cars Flip And Burn World's Dumbest Arm Wrestling Drives Woman Insane World's Dumbest Flipping Off In Church World's Dumbest Sexy Dancer Slips Up World's Dumbest Fiery Mechanic Burns Himself World's Dumbest Motocross Rider Gets Rammed World's Dumbest Season 16 Episode 05 Moaning Mountain Biker Flop A nervous mountain biker tries to compete with his more experienced friends. Facebook Share on Twitter Up Next Race Cars Flip And Burn The Baja 500 off road race is known for two things: flips and burns. More From World's Dumbest World's Dumbest Fake Owl Inspires Fear In Everyone The Watch Owl protects your garden from pesky critters AND looks super creepy at the same time. World's Dumbest What The Heck Is a Hamdogger? Be the king of the backyard BBQ (and confuse your guests) with the newest grilled meat sensation. World's Dumbest Don't Get Shot With Your Pants Down Rutt Wipe blaze orange toilet paper can save the life of any hunter who stops to answer nature's call. World's Dumbest Protect The Doughnut The Doughnut To-Go will make sure you never know the pain of a stolen breakfast. World's Dumbest Showoff Gets His Nipple Pinched This hot shot learns a painful lesson when he decides to get up close and personal with a crawfish. World's Dumbest The Irish Goodbye It's not a party until a drunken Irishman goes through a window. World's Dumbest Epic Roommate Brawl Two roomies beat the hell out of each other before squashing their beef with a man hug. World's Dumbest Rumble On The Beach The best way to stop a Spring Break fight between bros is with a swift elbow to the face. World's Dumbest WORLD'S DUMBEST Facebook Questions Gilbert Gottfried, Chris Fairbanks and the cast of<i> World's Dumbest</i> answers all new questions from the fans. World's Dumbest Miss Bum Bum Contest In Brazil, women compete in a beauty pageant judging just one particular asset. World's Dumbest Amateur Rappers Hide In Alaska Alaska is the new home to up-and-coming rappers. World's Dumbest Fireworks Destroy Boat Parade A sad boat parade livens up with some accidental fireworks. World's Dumbest Santa's Military Rescue Operation A daredevil Santa Claus calls in for backup when he gets stuck during a dramatic entrance. World's Dumbest Eager Boxer Gets Bloody Chin The American basement is home to innovation and bloody violence. World's Dumbest Policeman Destroys National Anthem A mumbling police officer shows off his patriotism with a terrible version of the National Anthem. World's Dumbest Spinning Leaf Blower Catastrophe There's a reason that carnival rides aren't made out of gardening equipment. World's Dumbest Sinister Rodent-Shocking Machine Eliminate pesky squirrels chowing down on your bird seed once and for all. World's Dumbest Spinning Leaf Blower Catastrophe Eliminate pesky squirrels chowing down on your bird seed once and for all. World's Dumbest The Perfect Wallet For Your Bra The Rack Trap helps protect your most valuable possessions...in your bra. World's Dumbest Coffee Shop Of Horrors Unbelievable things can happen on a typical coffee break.