what the results are whenever you barf inside any helmet that encloses the face. Can be used as a noun or verb. A portmanteau of "Darth" Vader and "barf". Barth is the title we gave to our mate bart because his favourite bodyboarder is garth mcgregor. Bart constantly attempts 2 do shit that garth does, therefore fucken thats y we gave him that title. An awful slob butt colleague that pisses anytime and functions like a dessert ass nigga (a pussy). ahahahahahahahahahahahahahahahahahahahahahaCHINCHILLAhahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahjesuschristalmighty omifuckingod hahahahahahahahh!!!!!!!!!!!!!