4AYN
4AYN definition by Slang.net - The Slang Dictionary
This page explains what the acronym "4AYN" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.
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In online chat messages, 4AYN stands for "for all you know." This acronym implies that you don't actually know all that much ...
For example, 4AYN, 4AYN doesn't actually mean "for all you know." It could instead stand for "for anyone you know," "for all youths now," or "for animals yes necessary." (But really, it does stand for "for all you know.")