What you playfully say to a cute chick when either another male chum of yours happens by or you bring said blinky-eyed damsel over and introduce her to him, and so you pass him one of da cutie's hands, feet, etc. so dat he can savor her warm softness, also.
Performing da "I always share with my buddy" routine is easy with any super-pleasant-to-touch/hold body-part dat da chick has two of, such as her hands, feet, boobs, butt-cheeks, etc. Plus of course, you and your pal can always "trade 'n' swap" da gal's sumptuous body-parts, as well, when the two of you are giving her a group-massage/caress --- for example, you can trade da hand dat he's holding for one of her pretty feet dat you're currently rubbing, or you can each knead and suckle one or the other of her ample chest-pillows in turn, so dat you both get equal time giving each of her nipples some lovies with your lips and tongues.
Da humorously-pleasant phrase dat you smilingly tell a cute lady when you offer one of her delectable-to-handle body-parts (hands, arms, legs, feet, boobs, butt-cheeks, etc.) to a male companion who has accompanied you on your visit to said hot chick.
Performing da "I always share with my buddy" maneuver is a total "win-win" situation for everyone including da gal, since it means dat she will receive twice da soothing massages and/or loving touches dat she would have gotten if just you had been present to savor her warm softness.
The use of one set of wireless headphones by two people to listen to the same music (from share + AirPods)
The couple were share-podding, listening to music on the train.
The act of a mother breastfeeding another mother's offspring
Mother 1: Would you like to nipple-share?
Mother 2: Sure, I'll give you my baby to breastfeed and you give me yours to breastfeed.
Mother 1: Great, let's be nipple-sharers!
Eating pop rocks while making out.
"We were rock sharing earlier and i think she has a thing for it." pop rocks
Dude, You're screen sharing to the TV.
Repetitive overcommunication between individuals.
Billy, are you done sharing panties with Dave yet?