OTF is an abbreviation for a term in the United Kingdom and Ireland called 'out the
fuck' commonly used if someone is sitting in your seat during a rugby or
football match, or used in any general situation where someone is where they're not supposed to be.
If you have a REALLY strong Irish, Northern Irish or Scottish accent you may say 'out teh
fuck'
someone
took your seat in additional maths
comes into room
morris: *whistles while putting finger in upwards motion* out the
fuck (OTF)
trevor: right okay *finds other
chair*