I've heard "you're never to old to teach an old dog new tricks", but this is ridiculous! Check out this rockin' granny as she steps up to the plate and downs one from the ol' beer bong on her flight to Cabo San Lucas. Hey!, someone tell Sammy Hagar to get the bar ready, this grandma comin' down and she's ready to party! Line em' up!

[Source: BroBible]