Top Definition
When you are so wasted and making out with someone that you throw up in their mouth, much like a mother bird to her young.
Dude, I had like 8 shots of Jaeger and was making out with this girl. I was so wasted that I puked in her mouth. I totally gave that chick The Mama Bird.
by Cincy Dan August 15, 2008
7 Words related to The Mama Bird

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