Alternative form of so crazy it just might work

(now historical) A tight, knee-length men's coat worn in the late 17th and early 18th century. / (now historical) A tight women's riding coat of the late 17th and early 18th century.

Alternative form of the darkest hour is just before the dawn

(humorous) Indicates the speaker has noticed an erection underneath the interlocutor's clothes.

Alternative form of my very educated mother just served us noodles

(mnemonic) Used to remember the order and names of the eight planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

(astronomy, slightly dated, mnemonic) Used to remember the order and names of the nine planets of the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto.

(astronomy) Synonym of my very educated mother just served us nine pumpkins

(historical) A knee-length coat worn by men in the 17th and 18th centuries.

Misspelling of juxtacrine.