1. One-tenth of a time.
2. (in mathematics) Used to describe a quotient between 0.1 and 0.2.
I ran around the track zero-point-once, then I got tired.
“Seven goes into 1 zero-point-once, with a remainder of 0.3.”

(Said by someone on Numberphile, a channel on YouTube.)
by Yamato Yamamoto May 6, 2022
Get the zero-point-once mug.
once selca day is the most important day of the year. it’s a day that all onces imitate a selca of twice and post it on twitter.
nayeon - what day is it?

jeongyeon - it’s once selca day!
by badgirlpussyboss27 May 10, 2022
Get the once selca day mug.
It is a function to a context that was once doubted or certainty from a person's statement and theories.
Penrose Tilings were once thought as impossible shapes.
by 1m1m0 September 28, 2022
Get the once thought mug.