English Idioms About “Science”
Idiom: It’s not rocket science
Meaning: If something is not rocket science, it is not difficult to understand.
Example: 1. It’s just an easy math problem. It isn’t rocket science. 2. You don’t have to be a rocket scientist to figure out the solution.

English Idioms About “Clothes”
Idiom: Lick someone’s boots
Meaning: The phrase lick someone’s boots means to act in a servile or obsequious way toward someone, especially to gain favor from them. Shakespeare used this idiom in the form of lick someone’s shoe in The Tempest (3:2) when Caliban wants to serve Stephano rather than Trinculo, offering to lick his shoe CALIBAN I’ll not serve him; he’s not valiant.
Example: She seizes every opportunity to lick the boss’s boots.

English Idioms About “Death”
Idiom: Dead and buried
Meaning: No longer in use or under consideration, irrelevant, forgotten.
Example: All past animosities are dead and buried now.

English Idioms About “Money”
Idiom: Have money to burn
Meaning: To be very rich and spend a lot of money on unnecessary things.
Example: He seems to have money to burn. He always buys his girlfriend extravagant things

English Idioms About “Colors”
Idiom: In the pink
Meaning: Healthy.
Example: He has been in the pink since he decided to go on a diet and exercise regularly.