pole, beat
搒 centers on using a long stick-like object to strike or propel: a pole for punting a boat, or beating with a rod. The two meanings connect through the idea of a pole used as a tool for forceful action.
搒 combines 扌 (hand) with 旁, which likely contributes the sound. The character is associated with actions done with a pole or rod, but the exact historical development is uncertain.
The hand radical 扌 beside 旁 suggests a hand holding a long pole. Picture someone using a pole to push a boat or to beat something forcefully.
For ホウ, imagine a pole being used to beat a hollow drum: hollow -> ホウ, and the pole strikes with a deep sound.