Here's a breakdown:
* "Fat of the land" is a figurative phrase that means "the best of what is available," often referring to food and resources.
* "Lan" is a slang word for "land" that is sometimes used in informal speech.
Therefore, "an live off fatta lan" is a humorous way to say "to live a life of luxury and abundance." It suggests someone who has access to the best things in life and doesn't have to worry about basic necessities.
Example:
"He inherited a fortune from his grandparents and now he's just sittin' around, an' livin' off fatta lan."
This example suggests that the person has become wealthy and is now able to enjoy a life of leisure without working.