gripple
(v) the act of squeezing, popping, scratching, et al the zits and boils on a lover's back, not necessarily during sex. Often done at random or during outdoor picnics by a body of water.

Also known as:

"Clearing the mine-field", "raking the back-leaves"
"Oi, Kev...how's Denise?"

"Great Mick...she's like a chimp she is, always trying to gripple me back!"