名詞 bumboat:

1. a small boat that ferries supplies and commodities for sale to a larger ship at anchor

bum.boat

n.Nautical （名詞）【航?！?/i>
A small boat used to peddle provisions to ships anchored offshore.
小賣艇：向在岸邊拋錨的船只兜售貨物的小船

來源：
Probably partial translation of Low German bumboot [ship`s boat]
可能為 低地德語 bumboot的部分翻譯 [大船的小艇]
partial translation of Dutch dialectal bomschuit [small fishing boat]
荷蘭方言 bomschuit的部分翻譯 [小漁船]
bom [ship`s bottom] from Dutch bodem from Middle Dutch
bom [船的底部] 源自 荷蘭語 bodem 源自 中古荷蘭語
schuit [ship]
schuit [船]