This happened during the "Matching Until Ending" segment of VERSEⁿ's 4th anniversary stream.
The first question was, "What country starts with the letter A?" Uno's answer was "Asia."
Otoha then had an idea: "If we match it with Uno's, it'll match," and the powerful phrase "Make your head (brain) Uno" was born (sigh).
https://veellage.jp/posts/f646918d-01ab-4900-8249-1a9faa7274c0
I used the clip function to clip the relevant part 🎬

VEE quote: "Make your head Uno" | 蒼樹里緒's post