Someone who looks at breastfeeding mothers with disgust.
A meddler who offers unwanted advice to breastfeeding mothers.
An officious annoying person who interferes with breastfeeding mothers.
From the word: Kibitzer
Kibreastzers should try covering their heads when they eat.
Why are kibreastzers annoyed when they see breastfeeding mothers but are not bothered by bare breasts on advertisements?