~ K ~

Keep your chin up
Meaning: You say this to encourage people to be brave and not to be sad when they are in difficult situations.
Example: Keep your chin up! All in the team are here to help you.

(a fine or pretty) Kettle of fish
Meaning: A difficult situation
Example: This is a fine kettle of fish to me because I need to present the findings to the management soon but the computer is suddenly down.

Kick in the teeth
Meaning: Something upsetting or disappointing
Example: After a few days of hard work in preparing for our new product, it is a kick in the teeth that our competitor is faster in launching a similar item.

Knock your socks off
Meaning: Amaze or surprise you with something nice
Example: Tommy knocked our socks off by giving a fluent presentation of the salary survey findings.

Know your onions
Meaning: Being knowledgeable about a certain subject
Example: The real estate salesman knows his onions and has gained the trust from many customers.