· hyper
· Don't get hyper about what she told you. You know it isn't true.
· MEANING: over excited (来源：专业英语学习网站 http://www.EnglishCN.com)

· I.D.
· Can you show me some I.D. please?
· MEANING: identification

· in
· The tie you are wearing is really in.
· MEANING: fashionable

· in deep
· They are really in deep with each other.
· MEANING: deeply involved

· in the bag
· Everything is in the bag. There is nothing to worry about.
· MEANING: settled

· intense
· This is a very intense situation we are discussing.
· MEANING: serious

· jam
· I am glad you got yourself out of that jam.
· MEANING: trouble

· jerk someone around
· Recently it seems like everyone is jerking me around.
· MEANING: wasting my time and causing me trouble

· jock
· My roommate is a jock for the basketball team.
· MEANING: an athlete

· john
· The john really smells.
· MEANING: bathroom

· joint
· Where is the closest joint to here.
· MEANING: cheap bar

· joint
· He is good at rolling joints.
· MEANING: marijuana cigarettes

· junkie
· Sam is a junkie.
· MEANING: rug addict

· just off the boat
· He acts like he is just off the boat.
· MEANING: naive

· keep one's cool
· He kept his cool when his house burned down.
· MEANING: remained calm

· kegger
· I hear there is a kegger at John's house tonight.
· MEANING: beer party

· kick
· I get a kick out of watching him paint.
· MEANING: enjoy

· klutz
· He is a real klutz.
· MEANING: stupid and clumsy person

· knock
· Don't knock it if you can't do it any better.
· MEANING: criticize

· knocked up
· My dog gets knocked up once a year.
· MEANING: pregnant

· knockout
· Who was that knockout I saw you with last Friday?
· MEANING: stunning person

· knuckle sandwich
· Shut up or I'll give you a knuckle sandwich.
· MEANING: punch in the mouth

· kook
· Watch out for all the kooks in this neighborhood.
· MEANING: strange people

· laid-back
· You need to be more laid-back.
· MEANING: calm and relaxed

· lame
· That is really a lame excuse.
· MEANING: an inadequate

· line
· I have heard that line a million times.
· MEANING: story

· loser
· John is a loser.
· MEANING: annoying and useless

· love handles
· I exercise every day, but I can't get rid of these love handles.
· MEANING: rolls of fat around my stomach

· make waves
· Try not to make waves around the office.
· MEANING: cause trouble

· maxed out
· I am maxed out at my work and need to rest.
· MEANING: exhausted

· mean
· He plays a mean violin.
· MEANING: performs well on

· mega
· I have mega amounts of tomatoes in my garden this summer.
· MEANING: large

· megabucks
· He made megabucks when he sold his company.
· MEANING: a lot of money

· knock
· Don't knock it if you can't do it any better.
· MEANING: criticize

· mellow
· You need to mellow out and enjoy life.
· MEANING: calm down and relax

· meltdown
· There has been a meltdown in the relationship between my parents and I.
· MEANING: total collapse

· mickey mouse
· The homework the teacher gave us was mickey mouse.
· MEANING: nonsense and a waste of time

· move on someone
· I am going to try to move on Sarah next Saturday.
· MEANING: pick up and seduce

· mush
· That is total mush and you know it.
· MEANING: nonesense

· nark
· Watch out for the narks in the airport.
· MEANING: drug police

· neat
· That was a neat idea that you had.
· MEANING: good

· negative
· There are too many negatives about the company merger.
· MEANING: bad things

· nick
· The police nicked the shoplifter as he was leaving the store.
· MEANING: arrested