Bam Margera's quarter-million-dollar Lamborghini just took a $45,000 beating -- and according to Bam, it's all because his friend dumped the wrong fuel in the gas tank.
Bam fired off in a Twitter tirade against his pal Cleveland earlier today -- claiming Cleve filled up the Lambo with diesel and it completely DESTROYED the car.
According to Bam, he's turned to alcohol to help drown his sorrows -- chugging Goldschlager before his flight to Phoenix today.
But it's unclear if he actually made it to the airplane -- because last he tweeted, Bam claimed people at the Philadelphia airport he's flying out of "thinks I'm drunk. This is bullsh*t."