Frank J. Wilstach, comp. A Dictionary of Similes. 1916.

Mouth (Noun)

He had a mouth like a whirlpool.
—Anonymous

Her mouth turned up voluptuously like the antique masks of Erigone.
—Anonymous

A mouth as it were Solomon’s seal.
—Arabian Nights

That little mouth is like in this,
The rose-bush that so fair is,
For sly envenomed serpents hiss
In dark leaves where their lair is.
—Heinrich Heine

A dainty mouth like a crimson rose.
—Heinrich Heine

A mouth like the whale that swallowed a whole fleet.
—Thomas Lodge

Mouth that looked like a red gash from a sabre cut.
—Guy de Maupassant

His mouth opened like the end of a sawmill.
—Edgar W. Nye

Mouth was like a red rose rinsed with rain.
—James Whitcomb Riley

Mouth tremulous light as a sea-bird’s motion oversea.
—Algernon Charles Swinburne

Her mouth
Was as a rose athirst that pants for drouth.
—Algernon Charles Swinburne

Red mouth like a venomous flower.
—Algernon Charles Swinburne

Mouth sweeter than cherries.
—Algernon Charles Swinburne

A red mouth like a wound.
—Arthur Symons

As a pomegranate, cut in twain,
White-seeded, is her crimson mouth.
—Oscar Wilde