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1.
Another term for a woman's vagina, esp. when she is almost or currently pregnant.
"Yeah, she popped another one out the baby spout." Or "I got me up in that baby spout."
by Ashley November 29, 2004
 
2.
A catchy song from the point of view of a baby in the mother's womb. Often sung in a trio; including a bass, tener, and soprano.
"Baby Spout.. LET ME OUT of the Baby Spout.. I GOTTA GET OUT of the Baby Spout..."
by Erika January 25, 2005