(sorce: Iceberg Slim Pimp, The story of my life)

The section that contains the word:

He squeeled: Shine em up, hot shot! If I had your hand I would throw mine away. Get on bigtime. Shines aint but a dime. Shine em up!
I looked down at my stomps. They could stand a gloss all right.

Background:

Slim walks down the street in elegant clothes and a shoeshiner man invites him to get his shoes cleaned. (The section above is what the shoeshiner tells to Slim.)

So what does he mean by If I had your hand I would throw mine away ?

thanks in advance