Baby goggles is a phenomenon where the parents of an ugly baby think their baby is adorable and no one else does. They ignore the shortcomings of their baby’s looks on purpose.
It is the same as people who find the dishes they cook tolerably savory. Although the baby is ugly, parents would still profess a profound sentiment for him out of the ten-month pregnancy period and incubation, bringing him to the world as the product of their romance, which leads them to consider their child the cutest baby.
Nancy: Here's our little bundle of joy! Isn't she just the cutest thing ever?!?
Lisa & Kate (after one look at Nancy's ugly baby): Ohhhh...! Yessss....
Lisa to Kate: I think Nancy has baby goggles - that's got to be the ugliest baby I've ever seen!