Squonking is a term used to describe a bottom fed atomiser. The term comes from the noise a bottle makes when you squeeze it (squonk). The squonker was made as vapers got tired of re dripping into an RDA. Mods were designed with a bottle inside that you can fill with e-liquid. A "squonk" pin with a whole through the middle is then installed into the atomiser to allow liquid to rise from below when you squeeze the bottle This fills the chamber with eliquid and wets the wicks. The act of letting go of the bottle draws the excess from the chamber.