to feed the birds

An excuse or answer to ANYTHING, use this phrase when someone asks you a question you don't know how to answer, or use it if you are caught doing something you aren't supposed to be doing.

man: why is there food all over the ground?
you: To feed the birds, why else?

Feeding the baby bird

When you're having sex with two girls and you pull your cock out of one of the girl's pussies and shoot jet after jet of hot, nourishing cum in the other girl's mouth and proudly exclaim, "you're welcome".

She could barely wait until I fed the baby bird. They both begged me for my cum. I had to get busy feeding the baby bird.