"Fish in My Dish" - Sharon Jones

One word...Sexy. Thanks to my friend Chris for introducing my to her music. I may be naive, but it sounds like to me that a) she is singing about fish and b) she REALLY likes fish. Somehow, she makes fish sexy...Is that wrong? This is from 'Naturally' released in 2005

"I remember when an old man said
Fish tastes better when it's fresh off the line
But I can tell you that it tastes even better
When I know that the line was mine (line was mine)"