The sexual act of a girl desperately trying to get pregnant but her lover will only let her give him a blow job. Once he has left the room she attempts to impregnate herself by “Mama Birding” his cum (throwing-up) into her own underwear.

A sexual act which is preformed by the woman. After the man cums into the her mouth, the man will get on his knees as the girl stands up and proceed to gag the sperm like a mama bird into the man's (the baby bird's) mouth

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.

Chewing up food then spitting it back up on a passed out friend

The sexual act of a woman thrusting her tongue into the back of a man's throat while kissing. This causes the man to vomit into the skank's mouth, at which point she climaxes into euphoria and is no longer hungry.

1. The act of chewing up food and spitting it into another's mouth. This is commonly done for those who lack salivary glands, therefore they would have some difficulty chewing up dryer foods such as bread, pancakes, or cupcakes.

2. A sexual act in which a male partner defecates into the mouth of the other partner, then proceeds to masturbate onto the feces. The first partner chews up the feces and cum into a mush. The partner then drops the mixture from their mouth into the other partner's mouth, just as a mama bird would do to feed her young.