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dashi (ダシ) sometimes is for "run"
but this sfx is nothing about running!
example (the ball is a dough, they make bread)
Judging from the scene, it's obviously used as a variant of ダーン. It's not a common onomatopoeia, and I don't think I have seen this elsewhere. Mangaka often create original onomatopoeias, and I think this is another example.
Required, but never shown