Bloody nipple

Or it could be the name of a drink.
You know one of those shooter drinks that get trendy from time to time.
Like sex on the beach

Yours could be called
THE BLOODY NIPPLE!

CVS sells a box of 100 clear round bandaids which fits right over the nipple itself without going on your chest hair. I use them for every run-had the bloody nipples-never want that again.

What if your nipples are the size of bologna?   I have ran 2 full marathons in the past few months and never had this problem... Maybe because I am so dang compressed with my under armour I dunno