Top Definition
the kid in your family which deserves "sinkies" (cinder blocks) instead of floaties at the pool. often the most annoying child in the family or a product of incest. He/She may drool and sneeze excessively, be nearly albino in complexion, bite one's own appendages, and will most likely not be able to form coherent sentences.
a sinky child is: my cousin, my brother Bilo, a whining youth in need of a good smack across the face, and the slow children at play
by GBgoer October 24, 2009
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