We just don't get it, there are so many other things you could say.
We aren't really sure why saying boo is a thing at all, to be honest. BOO - WHATS UP WITH THAT?This ghost costume looks frighteningly realistic, doesn't it? Maybe we will see you there? We think we would like to haunt an animal shelter. FUN DETAILS This whole dress is downright spooky! It's not like we have done our research, we haven't been searching for an answer, it just seems like their might be other stuff worth yelling if you're a ghost, you know? Saying boo doesn't actually mean anything, really, you might as well just grunt or yell. You know what's not all that realistic? Much scarier than the phrase "Boo!" anyways.