M/F
M/F definition by Slang.net
This page explains what the acronym "M/F" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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M/F is an acronym for "male or female" you will often see as a question online. People often simply respond with an M or an F to indicate their gender.
You will likely see M/F when messaging online to determine a person's sex. For example, you might be messaging a man online, but he is a gender ninja, so you ask him "M/F?" to determine his sex.
M/F often pops up on questionnaires to gather information about the person filling it out. For example, you might complete a sign-up form for an event, and one of the questions is "M/F."