a banana that is use in the way as road beer but only more healthy. you hang it out your pocket while you walk form place to place, normally when your piss drunk, as the road banana holder it is your job to, watch for people to chuckle at it. also known as the potassium bomb.
n: were hiting the road steph.
steph: just a sec ill grab a road banana,
n: sounds stellar chief i could use some potassium.
steph: road beer man too broski?
n: no there just way too over rated.