Unsteady, poorly coordinated, and often unintentionally homoerotic sexual position wherein three people are forming the letter 'H' with their bodies. Two are standing (forming the vertical elements of the letter 'H') and one is giving a blow job while also taking it from the rear. Also referred to as the shaky H.
Kevin: Well, how do you think our floppy H is doing so far?
Sandra: Mfff, brmmm, gmmbff.
John: DON'T LOOK AT MY EYES!