Hey, where all the white women at?

Lili: Would you care for another schnitzengruben?
Bart: No, thank you. Fifteen is my limit on schnitzengruben.
Lili: Well then, uh, how about a little, uh … (she whispers in his ear)
Bart: Baby please. I am not from Havana. Excuse me honey. Besides, I’m late for work. I’ve got some heavy chores to do.
Lili: Will I, will I see you later?
Bart; Well, it all depends on how much Vitamin E I can get my hands on

Undoubtedly one of the greatest comedies ever made…

However, to this day I still have no idea what Sheriff Bart meant by that Havana remark… Can someone please elaborate?

I shall leave you with a little song while you’re pondering:

Here I stand, the goddess of desire
Set men on fire
I have this power.
Morning, noon, and night, it’s dwink and dancing
Some quick womancing
And then a shower.
Stage door Johnnies constantly suwwound me
They always hound me, with one wequest.
Who can satisfy their lustful habits?
I’m not a wabbit!
I need some west.
I’m tired…