Someone who wears above an 8 in women's jeans at Abercrombie & Fitch, thus causing an employee to get out a step latter to reach the top rack where they are located.
"Yeah, I'm actually on my way to get a step ladder. This girl is a top racker."

"Where is the step ladder? This girl I'm helping is a top racker."
by Matt McCulley January 30, 2009
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