Idioms, are a group of words established by usage as having a meaning not deducible from those of the individual words. Today I will tell you 10 new Idioms that you should definitely know. 1. Through thick and thin - It means to be loyal no matter what. 2. Go down in flames - It means to fail spectacularly 3. See eye to eye - It means to agree completely 4. By the skin of your teeth - It means just barely. 5. A grey area - It means something unclear. 6. A rip-off - It means something is too expensive. 7. Add fuel to the fire - It means to add more to an existing problem 8. Call it a day - It means time to quit has come 9. Crack a book - It means open up a book and study 10. Get a kick out of it - It means really enjoy or liking something