Pahash
Pahash was a Klingon alias used by Miles O'Brien on a mission to expose a Founder at the highest levels of the Klingon Empire. 

"Pahash" was a member of the House of Konjah. When the Changeling  recognized his face, but couldn't place it, "Pahash" claimed to have fought at the Battle of Mempa. This placated "Martok" temporarily, after which "Pahash" requested to share a drink with him. ()

de:Pahash
Klingons
Aliases