Corp Por is the
incantation of the spell
energy bolt in
Ultima Online. The spell is of widespread usage, especially during
PvP, so after playing UO for a
significant portion of time, you will hear 'corp por' quite a bit.
The phrase itself has developed a
colloquial meaning in
online games as a way of describing
imminent danger or a warning that
something bad is about to happen.
See also:
Ultima Online