It’s a line Elaine said to a woman at a party who kept referring to her boyfriend as ‘my baby’....’where’s my baby’, ‘I can’t find my baby.’. Elaine, fed up with all the ‘baby’ talk said to her in an australian accent , “Maybe a dingo ate yer baby.”...mimicing Meryl Streep in the movie.
I have never watched “Seinfeld”
that was a great line!