MOS
MOS definition by Slang.net
This page explains what the acronym "MOS" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
We are constantly updating our database with new slang terms, acronyms, and abbreviations. If you would like to suggest a term or an update to an existing one, please let us know!
A more specific version of POS. Tells the recipient to be careful what he or she types because the person's mom is watching.