Becky means:

Becky: A person who should have never been born. Just leave them and forget about them. Anyone who likes her is the definition of the song Moral Of The Story:

Talking with my lawyer she said
"Where'd you find this guy?"
I said, "Young people fall in love"
"With the wrong people sometimes"

Some mistakes get made
That's alright, that's okay
You can think that you're in love
When you're really just in pain
Some mistakes get made
That's alright, that's okay
In the end it's better for me
That's the moral of the story babe

Listen to the whole song.
And you will realise if you like a Becky/Rebbeca you will change your perspective and look at your Becky/Rebbeca and open your eyes properly.

This Jazz Cabbage got me zooted. Jazz Cabbage is less harmful than Squares. I’m smoking that Jazz Cabbage boy.