The etymology of boo is uncertain. The OED compares it with the Latin boare or the Greek βοᾶν, meaning to "cry aloud, roar, [or] shout." Older dictionaries suggest it could be an onomatopoeia ...

The timeless struggle of surviving high school has served as fodder for countless TV shows and movies. But Netflix’s latest YA series takes the concept more literally than we’re used to. In Boo, Bitch ...