all hands
/ˌɔːl ˈhan(d)z/Treated as plural
noun
1 Nautical. The full complement of sailors belonging to the crew of a ship.
2 Informal. In extended use: all the members of a party, especially when collectively engaged in work; everyone.
Phrases
all hands to the pump
all hands to the pump
all hands on deck
all hands on deck
all hands and the cook
Origin
Late 16th century; earliest use found in Henry Smith (c1560–1591), Church of England clergyman. From all + the plural of hand.