Wiktionary
bear a hand
alt. (context nautical idiomatic English) to make haste; to help quickly (''used mostly in the imperative'') vb. (context nautical idiomatic English) to make haste; to help quickly (''used mostly in the imperative'')
Usage examples of "bear a hand".
Come, come, you old Smut, there, bear a hand, and let's have that ferule and buckle-screw.