An expression of either great pleasure or great frustration.
To do the gesture, you should first open your hands in front of them with their palms facing upwards. After that, wiggle just your fingers. That's how you do the upside down keyboard.
-Good upside down keyboard-
My favorite band, Grown Ups, are playing ten minutes away on my birthday, * performs upside down keyboard*
-Bad upside down keyboard-
Player 1: Checkmate.
Player 2: *performs upside down keyboard*
When a woman spreads the lips of her vagina while straddling the chest of her partner and drags herself down his chest leaving a trail of white slime. The shape of the labia looks like a swimming sea slug.
Katie wanted revenge after David came on her chest without asking so while he was sleeping she climbed on top of him and gave him a ruffled sea slug.