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A female that seemingly continues to become impregnated over and over again. May also be refered to a Fertile Myrtle. Molly Mules typically have 3 or more children and usually reproduce right after the last C section has healed.
I can't believe my brother fell for Carla. I warned him she's a Molly Mule. Now look at his ass. Works three jobs, has six kids and she won't let him get snipped since she thinks she wants another.

Poor fucker.
by Eaton Holgoode November 28, 2015
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