Dogs were (and likely still are) trained to attack and bring down bears. One dog would be trained to jump on the bears back and attack the back of its neck, whilst the other would attack it from underneath. The "under dog" was far more vulnerable than the "top dog" hence the terms.
The term TOP as i have heard from my lieutenant colonel refers to the TOP sergeant. Usually that of the rank First Sergeant. Typically a senior non-commissioned officer.
Male Dog Term : Stud / Female Dog Term: Bitch
Some summer days are called dog days due to the intense heat that occurs on those days. It is compared to how dogs act sluggish and tired on such days thus giving it the term dog days of summer.
Terms can be classified as single-term (such as "dog"), multi-term (such as "black dog"), compound term (such as "blackbird"), or nested term (such as "big black dog").
The word 'top'... table-top spinning-top and top-dog
Top Dog Theatre was created in 2003.
There are no glands on top of a dog's head.
Other than being slang and Anglo American, the origin is unknowm
The word 'top'... table-top spinning-top and top-dog
On a menu, the term "dog" or "hot dog" refers to a weiner sausage.
The technical term for dog hair is "fur" or "coat."
the first top dog is the Australian Shepherd the second top dog is Doberman Pinscher.