Hi, I ran into this too and had the same confusion. The tricky thing about Snapchat slang is that abbreviations can mean multiple things depending on the person typing it. FN is most commonly used as “For Now.” For example, someone might say “I’m good fn,” meaning “I’m good for now.” But I’ve also seen friends use FN when making weekend plans to mean “Friday Night.” In rare cases, people even use it as shorthand for “Full Name” if they’re asking for your details, but that’s not as common on Snap—it’s more of a texting thing. The best way to know is always the context. If someone sent you “Wyd fn,” they probably mean “What are you doing Friday night?” but if they’re talking about how they feel, “fn” will mean “for now.” I’d suggest reading the whole message around it before responding.
