Top Definition
one who smokes a lot of pot, but who is not a pothead

latin root words: phila=love, caia= latin-ified version of kaya, which is used in Pittsburgh as another word for marijuana
There are many functional, ambitious, hardworking people who, because they enjoy a sleeping bowl or an afternoon joint with some friends, are what we lovingly and respectfully call philacaias.
by Leah, wife of Jacob February 04, 2009

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