English Idioms: Mark my words

English Idioms About “General”
Idiom: Mark my words
Meaning: Listen to me; used before a statement one wishes to emphasize.
Example: Mark my words, this boy is going to become a great poet.

English Idioms: All cats are grey in the dark

English Idioms About “Colors”
Idiom: All cats are grey in the dark
Meaning: The phrase all cats are grey in the dark means that in the dark, physical appearance is unimportant. The phrase is attributed to Benjamin Franklin.
Example: I really don’t care if she is ugly. All cats are gray in the dark.

English Idioms: Dead duck

English Idioms About “Animals”
Idiom: Dead duck
Meaning: Said about someone or something that is is doomed to failure or death.
Example: Due to enough unfavorable intelligence about the enemy, the attack they were intending to launch was a dead duck right from the start.