A retard in its infantile stage. This could be 1. literal (a retarded infant) or 2. metaphorical - describing something or someone that is so retarded that it lacks basic functional skills, motor or otherwise.
1. Wow - considering they are both retards, I'm grossly shocked that their baby isn't a tardlet.

2. There should really be a tardlet showdown: Snooki and Deena vs. All three Kardashian girls. Winner gets the tardlet medal of honor!!

3. Dude I look like such a tardlet in that pic.
by forealist February 24, 2012
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