Idioms 
idiom n. A phrase or expression whose meaning cannot be understood from the ordinary meaningsof the words in it. (The World Book Dictionary)
Daisy says "Can't humans get anything right? Just to help you poor people with the correct interpretation of some of these common sayings, I've added my own comments!
two or three dog night (Australian - the number of dogs needed to sleep cuddled up to for keeping warm)
Daisy says: "There's only two dogs in our house, so can we make that a two dog and two rat night!"
a dog's breakfast (Something bad)
Daisy says: "How can breakfast ever be bad?"
it's a dog's life (It's an easy life)
Daisy says: "What can I say? hehhehe!"
every dog has its day (The time will come to each of us when we will have the power or the good things)
Daisy says: "So watch out all you lizards, birds, cats, and other intruders!"
sad as a hound dog's eye (Very sad, pitiful)
Daisy says: "No-one can resist this look!"
"Now, all you puppers out there, it's your turn! I've left plenty of idioms below for you to add your comment to. So, come on and help me out. Email me with your name, breed and comment, and tell me which idiom you'd like me to attach your comment to."
a barking dog never bites Someone who makes threats all the time, seldom carries out the threats.
a dog's chance no chance at all
a dog's life a wretched existence
bark up the wrong tree Pursue an erroneous course of action.
big dog important person
call off the dogs Cease some objectionable line of conduct.
crooked as a dog's hind leg dishonest
dog and pony show Put on a good performance to impress someone
dog days of summer Very hot days in July and August.It is the period in which the Dog Star, Sirius, rises in conjunction with the sun.
dog does not eat dog One disreputable person will not harm another disreputable person.
dog eat dog ruthless competition or self-interest
dog-faced liar a terrible liar
dog-leg right or dog-leg left The fairway turns in a golf course.
dog tired Very tired.
go see a man about a dog go use the toilet
gone to the dogs Taken a turn for the worse.
happy as a flea in a doghouse very happy
his bark is worse than his bite Someone comes across as being very mean and nasty, but doesn't necessarily act on their threats
if you lie down with dogs, you will get up with fleas If you associate with bad people, you will acquire their faults.
in the dog house In trouble.
it’s a dog eat dog world Vicious world.
like a dog's dinner Informal. dressed smartly or ostentatiously
like cat and dog quarrelling savagely
let sleeping dogs lie Don't bring up an old issue/topic that will raise tempers or cause an argument
love me, love my dog If you love someone, you should accept everything and everyone that person loves.
mean as a junk-yard dog Very Mean.
my dogs are barking My feet are hurting
on a short leash Held back by another person no being able to do what you want, usually used in reference to people within romantic relationships.
pretty as a speckled pup very pretty
proud as a pup with a new collar very proud
quick as a dog can lick a dish fast, very quickly
rain cats and dogs Raining heavily.
sick as a dog Very sick.
the hair of the dog that bit you The drink you drink in the morning to get over the drinks you drank the night before.
throw you a bone To give you a compliment.
with the tail between the legs Thoroughly coward.
why keep a dog and bark yourself You should not do something you hired some one else to do.
work like a dog Work very hard.
you cannot teach an old dog new tricks Someone who is used to doing things a certain way cannot change.
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