Top Definition
a lamma mamma is a lamma that was raised by humans, brought up by our species,they have been in the human family for a long time, long enough to see a new generation form, the lamma's human owner becomes pregnant and gives birth to a new human, the lamma, who is so the close to the new human mother, becomes protective and "mother like" towards the new human child, the lamma destroyes the human mother and takes the human child under its wing and raises it as its own destroying anything in its path.
Ever since Becky became a mother she is so fucking protective! That witch is such a lamma mamma!
by INSPECTOR.GADJETT August 01, 2009
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