Holy cow (expression)

Okay kiddo, so "holy cow" is something people say when they are surprised or shocked about something. It's just a silly expression people use instead of saying something more serious like "oh my goodness" or "wow".

It's kind of like when you see something really cool or unexpected, like a funny video or a flying bird, and you say "whoa" or "cool beans" instead of just saying "wow". People use "holy cow" because it's a funny and lighthearted way to express their surprise. It doesn't actually have anything to do with cows being holy or anything like that. It's just a funny saying that people use to express their surprise in a fun way!