What is the meaning of Fanon?

A vestment reserved only for the Pope for use during a pontifical Mass.

Part of a bishop's mitre. They are the tabs extending down from the mitre, often with a cross near the end of each. See lappet.

A maniple.

A fold of linen laid under a splint.

Elements introduced by fans which are not in the official canon of a fictional world but are widely believed to be or treated as if canonical.

dewlap (pendulous skin under the neck of an ox, lizard, or other animal)

wattle (wrinkled fold of skin hanging from the neck of a turkey or other bird)

baleen plate; baleen (bony material that makes up the plates in the mouth of a baleen whale)

feather, feathering (long hair on the lower legs of a horse)

bracelet on the right arm

fanon (vestment reserved for the Pope)

fanon (part of a bishops mitre)

tabs on a banner or pennant

maniple, fanon

fennel

dewlap

Source: wiktionary.org