An elastic strap that holds your swimsuit top in place so that you can untie your swimsuit straps and tan without getting tan lines or flashing everyone around you.
Ew, look at that trash's tan lines! Even though they match her 3" acrylics, bedazzled booty shorts and maroon lip-liner pretty well, she should have picked up some BikiniBands before hitting the beach.
by CeCeWinans May 28, 2008
An elastic strap worn over your swimsuit so that you can suntan without getting tan lines or flashing everyone around you.
I wear my bikini band at the beach every day because tan lines are ridiculously trashy and I have no intention of going on Jerry Springer...ever.
by CeceBecks May 22, 2008