Superincumbent

superincumbent \ˌsü-pər-in-ˈkəm-bənt\ adjective: lying or resting and usually exerting pressure on something else

Etymology: Latin superincumbere to lie on top of, from super- over, above + incumbere to lie down on

If you were in middle school and just learned this word, you’d use it in a risqué double entendre, wouldn't you?