The app developers took the world by storm with an incredibly addictive game for smartphones, but they've really been seen as just a one-trick pony ever since that breakthrough success.
2) A Hard/tough Nut To Crack-a person, thing, situation, or problem that is particularly difficult to understand, solve, or deal with-
I've been dating Jenny for over a year, and I still think she's a tough nut to crack!
3) Sauce For The Goose Is Sauce For The Gander-if something is good, acceptable, or beneficial for one person, it is or should be equally so for another person or persons as well-
Well I guess if you are entitled to stay out until all hours, then I'll do the same. What's sauce for the goose is sauce for the gander, right?
4) Cut The Mustard-come up to expectations, reach the required standard-
I didn't cut the mustard as a hockey player.
5) Cry Wolf-to cry or complain about something when nothing is really wrong-
I'm sure there's no real crisis - Janet is always crying wolf so that we'll do her work for her.
6) Close But No Cigar-almost but not quite successful-
They didn't catch him in the car - close but no cigar.
7) Burst Someone's Bubble-to destroy someone's illusion or delusion, to destroy someone's fantasy-
I hate to burst your bubble, but Columbus did not discover Canada.
8) Chime In-interject a remark-
Andy chimed in with his view of the situation.
9) Sight For Sore Eyes-very attractive to look at, someone or something that one is excited or overjoyed to see-
The sunset over the Strait of Malacca is a sight for sore eyes.
10) Cut Loose-to behave in an uncontrolled, wild way-
Don't be too hard on them - they're just kids and they need to cut loose sometimes.
11) Serve Somebody Right-if you say that something bad serves someone right, you mean that that person deserves it-
"He hit me!" "It serves you right. You shouldn't have been so mean to him.".
12) Bring Sand To The Beach-to do or undertake something redundant, pointless, or futile, usually in the context of bringing something to a location where it is abundant or unnecessary-
The company always caters lunch for these meetings, so I don't know why you bring in your own sandwich. You might as well bring sand to the beach!
13) Steer Clear-to avoid someone or something-
Steer clear of the boss today - he's yelling at everyone he sees.
14) Lick Someone's Boots-to try very hard to please someone in authority, usually in order to get an advantage-
It's no wonder you're the teacher's favorite from the way you lick her boots!
15) Chicken Out-to decide not to do something because you are too frightened-
I was going to go bungee jumping, but I chickened out.
16) By All Accounts-according to the information or reports that are available or from what people are saying-
I don't know how we survived that plane crash. By all accounts, we should be dead right now!
17) Knuckle Down-to start working or studying hard-
If you want to get a passing grade this semester, you'll really need to knuckle down and study hard.
18) Cut And Dried-predetermined and not changeable, simple and easy to understand-
The coursework is cut and dried, so don't even think about coming to me in pursuit of extra credit.
19) On A Silver Platter-delivered or given to one, without having put forth much or any effort-
Of course the CEO's daughter got the job without having to interview - she gets everything on a silver platter.
20) Have A Bone To Pick-to want to talk to someone about something annoying they have done-
I've got a bone to pick with you - you've been using my shaver again.