"Understanding Bra Sizes" joke

Have you ever wondered why A, B, C, D, DD, E, F, G, and how the letters are
used to define bra sizes?
If you have wondered why, but couldn't figure out what the letters stood for, it is about time you became informed!
{A} Almost Boobs...
{B} Barely there.
{C} Can't Complain!
{D} Dang!
{DD} Double dang!
{E} Enormous!
{F} Fake.
{G} Get a Reduction.
{H} Help me, I've fallen and I can't get up.