cock-and-bull story
very hard to believe and probably untrue
flog a dead horse
try to do something which is doomed to failur
have a bee in your bonnet
be obsessed by something
hold your horses
wait a moment, don’t rush
let sleeping dogs lie
don’t look for trouble
smell a rat
suspect that something is wrong
take the bull by the horns
face a problem instead of running away
as the crow flies
distance in a straight line
donkey's years
a very long time
straight from the horse's mouth
directly from a reliable source
top dog
the most important person, the main character
until the cows came home
for a very long time
rat race
business and confusion
a wolf in sheep’s clothing
pretending to be good when someone is bad
getting on your high horse
behaving with arrogance
getting off her high horse
beginning to feel humble and agreeable
scaredy cat
someone who is frightened
having a cow
to be worried, upset, or angry about something
swimming with sharks
to operate among dangerous people
little birdie
not saying how you find out about something or who told you
fishy
seeming dishonest or false
being a chicken
someone who is not brave
being a parrot
to repeat something without thought
being foxy
being attractive
raining cats and dogs
to rain very heavily
a dog’s life
a horrible life
dog ears
to turn down the corner of a page of a book so that one may easily find that page again
a dog’s dinner
a situation, event or piece of work that is chaotic, badly organized or very untidy
dog eat dog
to describe a situation in which people will do anything to be successful, even if what they do hurts other people
a dog’s breakfast
something that is messy or bungled (failing to do something properly because you made mistakes, or you are clumsy