Top Definition
The tendency of newborns to sleep during the day and cry at night, due to the fact that womb babies arenocturnal because the mother is relaxed and inactive at night.
“The new baby sleeps all day and cries all night. I hope he gets over his womb lag before I go insane.”
#birth control #infant #jet lag #womb baby #womb regret
by JRPearlMan January 13, 2010
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