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1.
A fat girl that strips on Sundays. From the phrase "Super Sized Sundays" at some strip clubs.

Also used to describe fat girls in slutty clothes.
"Yo dawg that girl was straight-up Sunday stripper status."

or

Guy 1: "hey i got strippers for the party, they were hella cheap too!"
Guy 2: "man I hope they aint Sunday strippers."
by Ubertron February 22, 2011