BIOYN
BIOYN definition by Slang.net - The Slang Dictionary
This page explains what the acronym "BIOYN" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.
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An acronym used to tell a person to make something up if they don't know what they're talking about; does not refer to actually blowing snot out of your nose; similar to BIOYA and BIOYE, just a different body part.