What does "ENG 2 REV PRESSURIZED" ECAM message mean in the Airbus A32F?
In case of Airbus A320 (A318/319/320/321) models, ENG 2 REV PRESSURIZED means that the thrust reverser system is pressurized. From FCOM:

ENG 1(2) REV PRESSURIZED
Reverser system is pressurized, while rev doors are stowed and locked with no deploy order.

The crew are expected to reduce the engine thrust to idle when possible in flight (also on ground).

Reverse thrust system is pressurized with reverser doors stowed and locked.
THR LEVER 1 (2) .................................. IDLE
lf flight conditions permit, reduce the thrust of the affected engine to IDLE as a precautionary measure.

You can see a case where this warning came on.
Deployment of thrust reversers in flight could have fatal consequences as seen in a B767 Lauda Air Flight 004 (note that the warning is about reverser pressurization, not deployment).