When your partner shits in your mouth. Then you throw it up back into their mouth.
Me and cam had the wettest mama bird last weekend.
Mama bird is the act of regurgitating semen into another person's mouth.
I bet those two Mama bird each other when one misses out on giving the foreman a BJ.
When a girl finishes a blow job in her mouth and pretends she has swallowed his cum and goes in for a kiss. To his surprise she instead “feeds” the guys cum back to his mouth.
Jessica finished off Ross and thought she was being so thoughtful and gave him back his semen via the mama bird surprise
After ejaculating on your partner, you slurp up your cum and feed it to them with your own mouth.
"She said I could finish wherever I wanted, so I decided to give her a Mama Birding!"