FOS, MOS, and TOS

1. Shorthand for Father Over Shoulder, Mother Over Shoulder, and Teacher Over Shoulder, FOS, MOS, and TOS are all acronyms used by children and teens to let others know in chat that an adult is watching them.
2. MOS is also short for Meta-Oxide Semiconductor, see our MOS definition for additional information about this term
3. TOS is also short for several other terms. See our TOS definition for additional information about this term.

Also see: CD9, Chat definitions, MOS, POS, TOS