Scud vs Smud - What's the difference?

As a proper noun scud

is a soviet-developed ballistic missile.

* skud (dialectal sense only)

(en adjective)

(slang, Scotland) Naked.

(scudd)

To race along swiftly (especially used of clouds).

* I. Taylor

the first Nautilus that scudded upon the glassy surface of warm primæval oceans

* Beaconsfield

The wind was high; the vast white clouds scudded over the blue heaven.

* 1920 , , The Understanding Heart , Chapter II:

During the preceding afternoon a heavy North Pacific fog had blown in

(ambitransitive, nautical) To run, or be driven, before a high wind with no sails set.

(Northumbria) To hit.

(Northumbria) To speed.

(Northumbria) To skim.

(en noun)

The act of scudding.

Clouds or rain driven by the wind.

* 1851 , Herman Melville, Moby-Dick :

But high above the flying scud and dark-rolling clouds, there floated a little isle of sunlight, from which beamed forth an angel's face

A gust of wind.

(Bristol) A scab on a wound.

A small flight of larks, or other birds, less than a flock.

Any swimming amphipod crustacean.

(slang, Scotland) Pornography.

(slang, Scotland) Irn-Bru.

A bottle of Scud