Top Definition
Means "Just For You Know"

Not unlike similar overly-used internet acronyms.

Often used in digital conversations.
Angie: I'm heading over to Brad's house, jfyk

Jack: We're having a fire drill today, jfyk
#just #for #you #know #acronyms #text #texting #phones #cell
by MissZippers January 12, 2012
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