Swollen erectiveness of the nipple (or nipples) due to physical (or in some cases, mental) stimulation such as; licking, flicking, biting, sucking, freezing, burning (candle
wax), piercing, applying anything mentholated, slamming in a
door, stretching because you used them to hang
heavy objects from, etc. Shredding of one'
s upper garments, damage to glass and accidental injury to others are common due to the knifelike nature of the affected nipple.