It's a weight of some Japanese onion vtuber that have a height of 148cm which makes her a bit overweight, or rather above average. Some people use this as a meme in Hololive. You can see the reference in some of the polls she made, which 44.5% of voters pick the same poll
Friend: Yo dude, I saw an aqua clip about 44.5, do you know what that mean?
Friend 2: You know, 44.5 is a quite heavy onion.
Friend: what?
Friend 2: you're not deep in the rabbit hole yet.
and so Friend spends the rest of the month watching hololive clips and vods
Friend 2: You know, 44.5 is a quite heavy onion.
Friend: what?
Friend 2: you're not deep in the rabbit hole yet.
and so Friend spends the rest of the month watching hololive clips and vods
by krabkun March 19, 2022