-A-
- adds more fuel to the fire
-B-
-C-
- circling the drain : If someone is circling the drain, they are very near death and have little time to live. The phrase can also describe a project or plan or campaign that that is on the brink of failure.
- calm before the storm: a quiet period just before a period of great activity or excitement
- cross the line: if someone crosses the line they start behaving in a way that is not socially acceptable
- call it a day: to stop doing something, especially working
-G-
- go through the roof: to become very high
- get on in years: Someone who is getting on in years is growing old.
-K-
-
knee-high to a grasshopper: This term refers to
a very young and therefore small child.
-L-
- long in the tooth: A person who is long in the tooth is a bit too old to do something.
- mutton dressed as lamb: This expression refers to a middle-aged woman who tries to look younger by dressing in clothes designed for younger people.
-N-
- no spring chicken: To say that someone is no spring chicken means that they are quite old or well past their youth.
- putting a foot wrong: to not make any mistakes
- put a damper on something: to make something less enjoyable
-R-
- run its course: [for something] to continue through its cycle of existence
-S-
- spill the beans: to give away a secret or a surprise, to tell people secret information
-T-
- toe to toe: being in direct confrontation.
- throw under the bus: to sacrifice some other person, usually one who is undeserving or at least vulnerable, to make personal gain.