F.A.C. stands for Friday Afternoon Chiefin'.
to smoke weed on a friday afternoon.

Known offence way to swear before your old enough to say fuck

Friday Afternoon Club. Bars have drink specials, possibly pool tourneys or music shows to celebrate the end of the work week.

Fat Ass Chick

Military acronym for Forward Air Controller. A forwar Air Controller flies over enemy targets in a light aircraft, usually propellor-driven, and marks the targets that the strike aircraft and at times ground artillery need to attack. With the advent of recent advances in sattelite reconnasaince and UAV technology, the Forward Air Controller has become a thing of the past

An acronym for Flat-ass calm. Used by sailors, fishermen and people who spend time on the water to describe a sea like glass.

Another word for fag. When said fast it sounds like "fag" but indeed you are not sayin fag you are saying "fac". If you are called a "fac" you probally did something really stupid in life and deserved it. It can also be used as a gretting when on the phone. Also the second word to Phant0m chief. His real name is Phant0m Fac.