On Instagram, “FN” can have multiple meanings depending on context. Most commonly, it stands for “F*ing,”** used for emphasis in phrases like “FN cool” or “FN awesome.” It can also mean “Friday Night,” referring to weekend plans, or “Fortnite,” when used in gaming circles. The meaning usually depends on the post’s tone or subject.
FN on Instagram typically denotes the First Name, but it may also be called F***ing Night or For Now, depending on the context that the posts happen to be in or how the caption is said.
