Question

What is the best definition for the word tabby as it is used in the poem

Answer 1

it would be an adjective

Answer 2

The word tabby could mean one if two things:

1. A kind of cat (tabby cat)
"The tabby cat ran out in the lawn"

2. Tabby as meaning in funny
"The tabby baseball player slipped when he ran to 1st base"

Hope this helps!