Definition of "OOTD"

Word began to circulate: If you wanted your #ootd to be colorful and weird and stand out on social media, Dolls Kill was a good place to shop.

2021 February 6, Rachel Monroe, “Ultra-fast Fashion Is Eating the World”, in The Atlantic‎

[…] daily “OOTDs” (outfits of the day), rush recap videos from freshly tanned and coiffed prospective new members (PNMs), and reactions to 18-year-old girls either elated or devastated by the high-stakes game of likability that is rush.

2023 May 24, Adrian Horton, “‘Competitive femininity’: inside the wild and secretive world of sororities”, in The Guardian‎