The steeziest of tank tops, usually worn by broskis. These can be worn day or night and accentuate the bro's style and lacks of fuck given. Brotop wearers will often be heard using phrases such as "sun's out, guns out" and "pass me a brewski broheim". Brotops are great for kickin' it in the summer sun or hittin' the beach but can truly be worn on any occasion.
Hey man, are you going to the bars in that brotop?
No sun, no sleeves son!