Webster's Revised Unabridged Dictionary · 1913

Flimsy

Flimsy , adjective

[Compare Welsh llymsi naked, bare, empty, sluggish, spiritless. Compare Limsy.]

Weak; feeble; limp; slight; vain; without strength or solidity; of loose and unsubstantial structure; without reason or plausibility; as, a flimsy argument, excuse, objection.
Proud of a vast extent of flimsy lines. — Pope
All the flimsy furniture of a country miss's brain. — Sheridan

Flimsy , noun

1.
Thin or transfer paper.
2.
A bank note. [Slang, English]