Clearly a Newfoundland Carp
You like to have a drink after you kiss me
Kiss the Carp.
And if you've got the stomach for it, you can eat me
Fish are edible.
When I am last, I am not least
Carp swim upstream for breeding. The "least" ones are the new born, not the last to swim unstream.
I'm said to overpower beasts
A good catch can make a fisher swoon, and is not mankind the real beast?
And though I'm weak and thin and frail
The riddle is being told by a shark.
Don't argue with my man - you'll fail
You cannot argue with a Newfoundlander: to argue, you'd have to understand them.
Once more, who am I - can you guess?
After kissing the carp once more, you are unlikely to be in a shape to guess. I mean, how drunk do you have to be to do it twice?
Let's have a poll, it's only fair
A reference to the July 22, 1948 referendum, which was both close and viewed as unfair.
In fact, I'm well within your grasp
Just when you feel close to despair
A slogan used by Tourism Newfoundland.