They smell like burned mushrooms when I gulf them in flames with my holy incendiary.

As others mentioned, probably a mixture of really dank fungus, rotted tree bark, dried blood, oil, and gun-smoke.

A mixture of cheap fungus beer, sweat, gunpowder, oil, and a bit more cheap fungus beer.

Stinky

for whatever reason, i think orks smell like cabbage gunpowder and oil. o and cigar smoke, lots of cigar smoke.

They smell like all those pretty colors when you eat them. Shrooms. Yum.

Imagine...heaven

except its not heaven

and its green

and it has two legs.

BUT

it also has a small butt, butt thats okay because

THEY HAVE BIG AXES AND STUFF

but

Up close

you smell the smell of green and dirty flowers

and then you realize

you're actually playing world of warcraft



Wait what was the question again?

Whatever is in da Squig drops. Every ork takes a trip to the drops at least once a day, so they always wind up smelling like whatever's in the drops.

Da 'ell is wiv all dese 'umies invadin dis fread?

To a human, they probably smell really bad. Evil Sunz, not as much, because they probably smell mostly like smoke and gas (not THAT gas, I mean the fuel gas).

A proppa' Ork should smell like Dakka!
n nuffin' more.
Fuel like smell, accompanied by Blood and Gunpowder.
And perhaps abit of Roses in the morning from the fungus.