Its a metaphor that means something is controlling your life other than your brain. Ordinarily, a dog will wag HIS tail when he is happy, hang it low when he is sad or in trouble or hold it high when he is confident. Figuritively speaking, if the tail is wagging the dog then it is controlling him..not the other way around.
When a dog wags its tail it means its excited!
happy
He liked how you petted him.
ive heard it means they are happy to see you
It's tail.
voluntary
a dog or cat
He liked how you petted him.
A dog wags its tail and the tail wags the dog.
ive heard it means they are happy to see you
No
It's tail.
voluntary
It usally wags its tail
a dog or cat
A wagger is something who, or something which, wags, such as a tail or a finger.
it wags its tail and barks
If it wags it's tail a lot and seems very enrgetic and perky. The position and movement of the tail can make it quite easy to determine the mood of the dog.It wags its tail, and plays around. It can be funny at times!
This means your cat could be coming into it's heat.