expression
it's not impossible; it could work; it's not entirely out there
Colloquial phrase acknowledging that something is possible or plausible, often with a tone of reluctant agreement or hedging. Used when conceding a point or considering an idea that seems unlikely but not completely unreasonable.
See also: 有り
その計画、ありっちゃありだけど、リスクが大きすぎるよ。
That plan could work, I guess, but the risk is too high.
彼の言い分もありっちゃありだと思う。
I think his argument isn't entirely out there.