Webster's Revised Unabridged Dictionary · 1913

Frush

Frush , transitive verb

[French froisser to bruise. Compare Froise.]

To batter; to break in pieces. [Obsolete]
I like thine armor well; I'll frush it and unlock the rivets all. — Shakespeare

Frush , adjective

Easily broken; brittle; crisp.

Frush , noun

Noise; clatter; crash. [Rare] — Southey

Frush , noun

[Compare Old English frosch, frosk, a frog (the animal), German frosch frog (the animal), also carney or lampass of horses. See Frog, n., 2.]

1.
(Farriery) The frog of a horse's foot.
2.
A discharge of a fetid or ichorous matter from the frog of a horse's foot; -- also called thrush.