The act of pinching a person's nipples and rolling the tips between your fingers as if tuning the dial of a radio.
If the nipple-tweaker is also pulling on the nipple, it can be tagged nipple pull as well.
Use nipple rub if the person is "caressing" the nipple instead of pinching it.
The following tags are aliased to this tag: nipple_pinch (learn more).
The following tags implicate this tag: tweaking_own_nipple (learn more).