This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The historical origin of 抐 is uncertain. It combines 扌 (hand) with 內 (inside), but the exact development is unclear.
With no clear meaning, picture a hand 扌 reaching inside 內 something, but what it does is a mystery.
For ドツ, imagine a hand darting inside to grab something: darts -> ドツ, though the meaning is unknown.