When a man is giving a woman oral when he pukes in her vagina because of nasty qualities (smell, taste, Etc).
"It was so horrible me and Trent were fooling around when he gave me a mamma bird it was disgusting and my vagina smelled worse for weeks"

"Did you here about Jamarcus and Emma they mamma birded for fun.. They must be into some kinky shit!"
by Nigavanslevenhousen January 24, 2012
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After he nuts in your mouth, you don't swallow and french kiss him. Therefore the nut is transferred from your mouth into his. Like a mamma bird feeding it's young.
Yo, she just Mamma Birded in my mouth!

Mamma Birding
by DAboiUrmom September 25, 2019
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