As cute as a bug's ear simile
Used to describe a person( baby,toddler,infant) or a small animal very cute
I remember meeting this dog when it was a little puppy that looked as cute as a bug's ear.
I've met Lisa's newborn baby. She is as cute as a bug's ear.
The term is traceble to the United States during the nineteenth century. However, it seems from its etymological investigation that it is taken from Nathan Bailey's dictionary of etymology in 1731 that "acute" was used in the sense of "cute" as shrewd or quick-witted. However, in its current meanings, it was used by a local newspaper, the Charleston Sunday News, in a June 1891 publication as "Imogene McGinty is as cute as a bug's tail." Since then, using this term to refer to individuals has become commonplace.