Smell A Rat
Feel Something is Wrong
Fishy
Strange and suspicious
Get in Someone's Hair
Bother Someone
Pull Someone's Leg
Fool Someone
Not Have a Leg to Stand On
To have no good defence for one's opinions or actions.
Go to the Dogs
Become run-down ( In serious need for repair)
For the Birds
Uninteresting and Meaningless
Shoot Off Onc's Mounth
Express one's Opinions loudly
Play it by Ear
Improvise as One goes along
Get off Someone's Back
Stop bothering someone
Take the Bull by The Horn
Take Decisive actions in a different situation
Straight from the Horse Mouth
From a reliable Source
Jump Down Someone's Throat
Become angry with someone
Stick Out One's Neck
Horse of a different Color
Quite a different matter
Horse around
Play Around
Pay Through the Nose
Pay too high in Price
Shake a Leg
Hurry!
Let the Cat Out of the Bag
Inform beforehand
Cat Got your Tounge
Can't talk?
Tongue-In-Cheek
Not Serious
All Thumbs
Clumsy