Eraser Tip
When the tip of the nipple hardens either during cold weather or when the woman gets aroused, forming an eraser tip.
Man I was with Kristen last night at the movieswith cold weather and we were getting it on. Double eraser tip.
Shiiiiit
Shiiiiit
Eraser tip and stem
The stem of an eraser is the long part that goes onto the pencil and the tip is what you erase with.
Oh shit dawg, my tip broke now my stem is exposed. What a dumb eraser tip and stem