This one nearly baroque the pun-ometer. http://ift.tt/MSt0aa
"THAT’S IT! I AM SICK AND TIRED OF THESE MOTHERFUCKIN ORKS ON THIS MOTHERFUCKIN PLANET!"
The Codex Astartes does support this action.
Yes it does.
Chapter 437, subsection 9.12 B, titled: Alternate ways to kill an ork:
"Should a legionairres Bolter and chain sword fail, take any action necassary to purge the orks, including entering hand to hand (head to foot) combat, but barring using their primitive weapons."