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2.
overripe, odoriferous, noxious, foul, dishevelled
After 3 days without shower or changes of clothes, the men appeared sponky as they exited the rainforest.
by Kellen Sorensen July 21, 2006
 
1.
An ethnic slur referring to people of mixed Caucasian and Hispanic ethnicity; a combination of the slurs "honky" and "spic."
My Mom's white but my Dad's Mexican, I'm a sponky.
by Harry Crews January 18, 2008