Fono
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[Fono] is short, secret codename for [reverse gravity bong]. Smoking apparatus can be made with household objects, but [fono] enthusiasts shown great level of invention last decades. The most basic fono can be made out of aluminum foil and [plastic bottle]. Process of collecting smoke inside a bottle is called cooking. Weak, transparent fono si called ghost.
Fono meaning & definition 1 of Fono.