Why is slipping diagonal?

I'm sorry, I do not understand your question as asked. The novel, The Crossover, makes no mention of "slipping."

The Crossover

At the top of the key, I'm

Moving & Grooving,

Popping and Rocking

Why you Bumping?

Why you Locking?

Man, take this Thumping.

Be Careful though,

Cause now I'm crunking

Crisscrossing

Flossing

Flipping and my dipping will leave you

S

L

I

P

P

I

N

G

On the floor, while I

SWOOP in

to the finish with a fierce finger roll... Straight in the hole:

Swoooooooooooooooosh.

SLIPPING was diagonal because it was the layout of the first page.