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Related to keen: dictionary

treat them mean, keep them keen

Neglecting a romantic partner (or a potential romantic partner) keeps him or her interested in you. A: "Why hasn't Tom called me yet? I thought he liked me." B: "Maybe he thinks that 'treat them mean, keep them keen' actually works."
See also: keen, keep, treat

be as keen as mustard

To be very enthusiastic about something. Primarily heard in UK, Australia. These new kids are as keen as mustard to be in the choir, so we can definitely get them to clean up the choir room for us.
See also: keen, mustard

be keen about

To be excited about or interested in something. Rich is very keen about this cruise he's planned for the fall. Don't take this opportunity if you aren't keen about it.
See also: keen

be keen on

To be excited about or interested in someone or something. I'm glad that Jimmy and Lena are finally going on a date, since he's been keen on her for months. Don't take this opportunity if you aren't keen on it.
See also: keen, on

be mad keen (on someone or something)

To be very enthusiastic or excited about someone or something. Oh, I've seen the way Tim smiles at you—he's definitely mad keen on you! I'm mad keen on that college, so I really hope they accept me.
See also: keen, mad, someone

keen as mustard

Very enthusiastic and excited (about or to do something). Hyphenated if used as a modifier before a noun. There are plenty of talented kids around this area who are keen as mustard to be on the team, so we should have no problem filling the spot. Silverstone plays the hardened veteran detective, while Johansson plays the keen-as-mustard rookie assigned to be her partner.
See also: keen, mustard

peachy keen

Just fine; splendid; as good as one could hope for. Sometimes used sarcastically to imply the opposite. A: "Everyone doing all right in here?" B: "Yep, we're peachy keen!" A: "Oof, that was quite a tumble. You OK?" B: "Just peachy keen, thanks."
See also: keen, peachy

have a keen interest in something

to have a strong interest in something; to be very interested in something. Tom had always had a keen interest in music, so he started a band. The children have a keen interest in having apet, so I bought them a cat.
See also: have, interest, keen

keen on doing something

willing or eager to do something. Dave isn't very keen on going to the opera. The children are keen on swimming this afternoon. Shall I take them?
See also: keen, on

keen on someone or something

 and keen about someone or something
to be enthusiastic about someone or something. I'm not too keen on going to Denver. Sally is fairly keen about getting a new job. Mary isn't keen on her new boss.
See also: keen, on

keen about, be

Be enthusiastic about. For example, He's been keen about this whole endeavor for a long time. It is also put as be keen on, which has the additional meaning "to be ardent about or in love with," as in Jim's been keen on Jane for years. With other adverbs, such as keen at and keen of, keen has been so used since the early 1500s; the current locutions, however, date from the mid-1800s.
See also: keen

keen as mustard

If someone is keen as mustard they are very eager to do something. I have an adult pupil who scored very low in assessments but is keen as mustard. Note: You can also describe someone as mustard-keen. Sir Richard was mustard-keen to say his bit. Note: `Keen' means enthusiastic, but is also used to mean sharp when referring to the blade or cutting edge of a tool or weapon. An acidic or sour taste can also be referred to as sharp, so enthusiasm is being likened to the sharp taste or `edge' given to food by mustard.
See also: keen, mustard

keen as mustard

extremely eager or enthusiastic. British informal
Keen is used here to mean ‘operating on the senses like a sharp instrument’.
See also: keen, mustard

(as) ˌkeen as ˈmustard

(British English, informal) wanting very much to do well at something; enthusiastic: She’s as keen as mustard. She always gets here first in the morning and she’s the last to leave work in the evening.
See also: keen, mustard

be mad ˈkeen (on somebody/something)

(informal) be very interested in or enthusiastic about somebody/something: She’s been mad keen on African music ever since she came back from Zimbabwe last year.He’s mad keen on getting into the army.
See also: keen, mad

peachy (keen)

mod. fine; excellent. Your idea is really peachy!
See also: keen, peachy
References in periodicals archive ?
GA Keen Realty Advisors brought together a group of Brooklyn multi-family investors, led by apartment owners David Spira and Robert Wolf, who closed on the purchase Nov.
Keen Growth Capital identifies food, beverage and wellness companies with great potential to develop portfolio brands, benefitting investors with returns.
The newly-weds sign the register with both sets of parents, Alan and Cath Keen and Brian and Ann Lewis, right, and emerge to a shower of confetti, above
Keen, who made more than 200 appearances for the Hammers before moving into coaching, turned down a new contract at Upton Park.
Lucky lady - but you had to know something else about Keen to appreciate quite how lucky.
According to Keen, "Charlotte is willing to put in the time for discovery.
As the KEEN Recess Revolution gains momentum, we're releasing the results of this survey on Worldwide Recess Day, rallying workplaces everywhere to put workplace recess on their agenda," Curleigh continued.
As the mother of two KEEN athletes who both have autism, I have many KEEN memories.
Keen-Summit will continue Keen Realty's 33-year tradition of providing a comprehensive range of real estate-related advisory and brokerage, auction, capital markets and M/A services.
And from the football world, former assistant England manager Lawrie McMenemy - who also managed the Parliamentary Football Team in which Mr Keen played - and deputy chief executive of the Professional Footballers' Association Bobby Barnes attended.
HUSBAND and wife MPs Alan and Ann Keen claimed almost pounds 40,000 a year on a London flat although their family home was less than 10 miles away.
Clutching her daughter's death certificate in her hand, a visibly upset Cathy Keen told council members Tuesday that she was there to counter animal rights activist Pamelyn Ferdin's suggestions that 3-year-old Kelly Lynn Keen died of some sort of blunt force trauma.
WHEN River Keen won his first start on dirt in the United States - in the Grade 2 Californian Stakes at Hollywood Park in 1997 - Hugo Reynolds took notice.
Outdoor company KEEN launches a recess revolution movement to reinstate recess for adults, citing research on improved performance and well-being