AMERICAN IDIOMS (K)
Keel over (v.)
: A rude way of saying "to die".
(To be) keen on
: To like; To be fond of; ex: "I'm not really keen on this idea."
(To) keep a low profile:
To lay low; to not attract attention to oneself by talking loudly, dressing in flashy clothes, causing trouble, etc. ex. "The bank robbers knew that they had to keep a low profile until they crossed the border."
(To) keep an eye on (someone/something):
To watch/pay attention to (someone/something). ex. "I have to go to the store. Can you please keep an eye on the baby for 10 minutes?"
(To) keep a straight face:
To force oneself not to laugh, even though one wants to. ex. "He was saying the stupidest things, and I was finding it hard to keep a straight face."
(To) keep one's cool:
To remain calm. ex. "It's not easy to keep one's cool in stressful situations."
(To) keep one's word:
To uphold one's promise. ex. "He's a very honorable person who always keeps his word."
(To) keep someone posted:
To keep someone informed. ex. "I'm not sure what the plan is for this evening, but I'll keep you posted."
(To) keep someone up:
To not allow someone to sleep. ex. "The neighbors' party kept me up all night."
(To) keep something to oneself:
To not let others know about something; to not reveal something. ex. "Hey, don't tell anyone about your time in prison. Keep it to yourself."
(To) keep track of (something):
To maintain a record of (something). ex. "I don't know where all my money goes. It's hard to keep track of my expenses."
(A) kept man/woman:
Someone who is in a relationship where the other person pays for everything. ex. "Stephen is a kept man. His girlfriend always pays for everything."
(To) kick back:
To relax. ex. "My brother and I are going to kick back and have a couple of beers."
(To) kick oneself:
To regret. ex. "I'm kicking myself for not having bought that car when I had the chance."
(To) kill time:
To waste time. ex. "I'm just killing time until my brother arrives."
: Great; amazing. ex: "A killer new application", "A killer new product"
: A clumsy person. ex: "My brother is such a klutz. He's always bumping into things and knocking them over."
: To talk negatively/badly of; to criticize, badmouth. ex: "Don't knock it until you try it/ until you've tried it."
Knock it off!:
Knock on wood:
A phrase said to cancel out (imaginary) bad luck. *Touch wood* is also used in some parts of the English-speaking world.
Knock (someone) up
: To get (someone) pregnant; Knocked up = pregnant.
(To) know something inside-out:
To know something completely and thoroughly. ex. "Let me show you around. I know this neighborhood inside-out."
A person who acts like they know everything (slightly derogatory). ex. "P1: Robert is so conceited! P2: Yeah, he's a real know-it-all."