"From behind you or from behind them?"

Translation: Temögüled vagy őmögülük?

[JanTatouse]

The plural 'you' version apparently isn't accepted. What should it be? Timögületek?

[jsiehler]

Yes, although the shorter version mögületek is probably more common. Well, that's true of all these personal directional words but timögületek seems particularly unwieldy.

[vvsey]

So true. Yes, the pronounized versions are used when more emphasis is needed. As in "no, not from behind them but from behind you!!!"