The act of making love from behind, facing your partner's back; differentiated from doggy style because, when cavefishing, your partner is lying facedown and you support yourself on your elbows as in missionary position. Origin: iPhone's annoying tendency to autocorrect "facedown" to "cavefish".
A sexual maneuver in which a man inserts his penis into a dead (preferably) fish and procedes to engage in missionary sex (leading with the tail fin) with a female partner.
Jim was arrested soon after giving his girfriend an Alabama Cavefish.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.