1 definition by James Goldstein
a nipple that seldom remains concealed by a bra, or any article of clothing, meant to conceal it - usualy occures when an areola is significantly larger than that of the average nipple
"I love when chicks with silver-dollar nipples wear scoop-neck tops... every time they move, there's a PEEK-A-BOOB!"
by James Goldstein June 4, 2007