“Coed” has multiple meanings but has a widely accepted porn definition: female college student

“Cherry” is a fruit but also has multiple widely accepted porn definitions centred around virginity

The venn diagram of where they overlap makes it obvious they are in the adult industry.

“Coed” as a noun informally/imprecisely refers to female college students (for reasons that I have no idea, as it seems like it should be a symmetric label to me, given that a coed college requires both men and women, but the use of “coed” as a noun overwhelmingly means women).

“Cherry” suggests virginity.

I’ve never heard of CoedCherry until this HN post, but from the name, I’d assume they were an adult site focused on college or college-age women.

Historically, very few colleges admitted women, thus when they began doing so, they became "coeducational" institutions, but the prominent feature of such institutions was the (then minority) presence of women, who thus became associated with the term. There's little in history or language that is symmetrical or equitable - although, these days, the smart money on the unspecified college student is that she's a woman.

In the USA, Coed is a vintage slang for young ladies in a college (nearly always used in a “sexy” context in the modern day) and cherry is slang for virginity.

PS: I swear when I wrote this there weren’t 4 other perfectly good replies visible yet. Apologies for the redundancy