• A cat may look at a king
• A feather in your cap
• A free hand
• A long face
• A stab in the back
• All ears
• At first hand
• At second hand
• At the drop of a hat

• Bad blood
• Barking up the wrong tree
• Behind someone's back
• Below the belt
• Big guns
• Bite the hand that feeds you
• Bite one's lip
• Blood and thunder
• Blood is thicker than water
• Blow up in your face
• Born with a silver spoon in your mouth
• Bore the pants off
• Break the back of something
• Break the ice
• Bring up your own guns

• Can't see the wood for the trees
• Catch someone's eye
• Catch with your pants / trousers down
• Cut no ice

• Dead wood
• Donkey work
• Donkey's years

• Eyeball to eyeball

• Face to face with
• Fall on / turn a deaf ear
• Feather in your cap
• Fly in the face of
• Follow your nose
• Full steam ahead

• Get a jump on (someone)
• Get blood from a stone
• Get / have cold feet
• Get / give the boot
• Get into the swing
• Get off someone's back
• Get your skates on
• Give it the gun
• Go in one ear and out the other
• Go with a swing

• Have a ball
• Have ants in your pants
• Have your back to the wall
• Have your eye on
• Have / keep a foot in both camps
• Have one foot in the grave

• If someone had half an eye
• If the cap fits, wear it
• I'll eat my hat
• In full swing
• In someone's shoes

• Jump out of your skin
• Jump the gun

• Keep a stiff upper lip
• Keep a straight face
• Keep / have your ear to the ground
• Keep / have your feet (planted) (firmly) on the ground
• Keep your nose clean
• Knee high to a grasshopper
• Knock / beat into a cocked hat

• Laugh in your face
• Leg it
• Let off steam
• Lick / smack one's lips / chops

• Make an ass of yourself
• Make / pull a face
• Make a mountain out of a molehill
• Make hay while the sun shines
• Moonlight flit

• Not have a leg to stand on

• Old hat
• On bended knee
• On one's last legs
• On the ball
• On the cards
• Once in a blue moon
• Out of the wood
• Out on one's ear
• Over the hill
• Over the moon

• Pat / slap on the back
• Pay through the nose
• Pay / give lip-service
• Pick someone's brain(s)
• Play ball
• Play your cards right
• Pull someone's leg
• Pull your socks up
• Put a sock in it
• Put your best foot forward
• Put your cards on the table
• Put the boot in
• Put your foot down
• Put your thinking cap on
• Put your foot in it
• Put / set a foot wrong

Q

• Rack one's brain(s) / memory
• Rub someone's nose in
• Run out of steam

• Scare / Frighten the pants off
• See eye to eye
• See the back of
• Shake a leg
• Shake in your shoes
• Shoot off one's mouth
• Show / reveal one's hand
• Skate on thin ice
• Slip your mind
• Someone's knees knock together
• Spit in someone's eye
• Start the ball rolling
• Step into someone's shoes
• Step / tread on someone's toes
• Stick to your guns
• Storm in a teacup
• Sweat blood

• Take someone / something in hand
• Take the words out of someone's mouth
• Take a running jump
• Talk through your hat
• Taste blood
• The ball's in your court
• The boot is on the other foot / leg
• Throw your hat in the air
• Tighten your belt
• Tip of the iceberg
• Toe the line / mark
• Touch wood
• Turn up your nose
• Turn your toes up 

• Under someone's nose
• Under the sun
• Under your belt
• Under your own steam
• Up a tree / up a gum tree

• Walls have ears
• Wash your dirty laundry / linen in public
• Wear the trousers / pants
• Weather the storm

• You scratch my back and I'll scratch yours