phrase · first recorded 2026 · status: canon
Single until Series B
1.A founder's declaration that dating is on hold until the company raises its Series B. Worn half-ironically on a now-iconic baseball cap.
He rescheduled the third date to rebuild the data room - single until Series B.
01Origin
The phrase traces back to Connor Brennan Burke, though it crystallized into a movement through ambient grind-culture discourse, going fully viral in 2026 across X posts, reels, and merchandise. Its canonical form is not a tweet but an object: the embroidered "Single Until Series B" cap, sold by multiple print shops and spotted at demo days and hacker houses across San Francisco, worn with the city's characteristic sincerity-irony superposition.
It reached mainstream attention when Forbes' June 2026 story on the Silicon Valley AI boom's social side referenced the phenomenon, and when Greg Isenberg publicly attacked the trend as one of the worst to come out of Silicon Valley - prompting a full discourse cycle, including pushback from European founders. It belongs to the same emotional register as founder mode and uggmaxxing: the willing, theatrical subordination of an entire life to the company. Whether the wearer is bragging or grieving is left as an exercise for the reader. The logical endpoint has already been proposed: the YC–a16z singles mixer.
02Notable sightings
03Spread the ism
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