The story
- Proto-Indo-European*bʰā-
- Proto-Germanic*bō-
- Proto-West Germanic*bōjō
- Old English*bōia
- Middle Englishboye
- Englishboy
- Proto-Indo-European*smel-
- Proto-West Germanic*smalljan
- Old English*smiellan
- Middle Englishsmellen
- Englishsmell
- English todayboysmell
Compound of boy + smell. Popularized as an Internet meme by a post on 4chan, published 19 December 2020 and widely shared on social media.
Etymology from Wiktionary, CC BY-SA 4.0.