WHALEBOAT
whaleboat
(noun) a long narrow boat designed for quick turning and use in rough seas
Source: WordNet® 3.1
Etymology
Noun
whaleboat (plural whaleboats)
A long narrow rowing boat, formerly used in whaling, which is pointed at both ends so that it can move either forwards or backwards equally well.
A boat resembling this and carried on a warship or other ship.
Source: Wiktionary
Whale"boat`, n. (Naut.)
Definition: A long, narrow boat, sharp at both ends, used by whalemen.
Source: Webster’s Unabridged Dictionary 1913 Edition