Most Orky words starting with or using a C will have the C replaced, as in Trukk (truck) and Kulture (culture).
The same applies for the letter S in words like Boyz (boys) and Gunz (guns).
Something can be made Orky through either adding red paint (yellow can be substituted, as it is a roight snazzy kulah), adding some stompy bitz, or the traditional method of simply adding more DAKKA. Nevah enuff dakka.
Slugga boy: OI, dat 'umie's got sum roight Orky dakka! Let'z loot it!
Ork: OI, whacha think about me Wartrukk?
Second Ork: Not orky enuff! Needz more dakka dakka dakka! Nevah enuff dakka!
First Ork: WHAT!? OI! Yer right! More Dakka it is!
Ork: Oi, some git thought Orky ment "dorky".
Nob: Yeh. Warboss Bonestomp 'ad ta come in and fix it, Make it roight propah an' Orky.
A reference to the Warhammer 40 000 universe, Orks are a race of brutal, greenskinned thugs rampaging across the universe in search of a fight. Kind of like British football fans IN SPACE.
They are renowned for their patchwork, jury-rigged equipment and vehicles, having looted and rebuilt anything they can get their hands on.
This lends them a haphazard appearance, so much so that the word "Orky" refers to any device, vehicle, repair-job, or, god forbid, medical procedure which is haphazardly thrown together from spare parts and only held on with spit, string and good luck.
Similar to MacGuyver
My car antenna got ripped off so I made an Orky one out of a wire coathanger.
I don't have medical insurance so I stitched the wound together with a staplegun. Dead Orky.
Person A: We must exploit the tennis world because they have bricks on the ground, making us feel dorky!!.
Person B: lol! that's so Orky.