1. tanky - Noun
2. tanky - Adjective
(wine) Having a dank quality resulting from excessive ageing in a tank.
(gaming) Able to withstand much damage, having a lot of hit points (that is, like a tank).
(nautical, slang) A sailor who assists the navigator of the ship; a sailor in charge of the ship's hold, and thus responsible for the provision of rations and water.
Alternative form of tankie (“a soldier from a tank regiment; a member of the Communist Party of Great Britain”).
Alternative form of tank (“storage tank”) in Indian subcontinent variety of English; esp. "water tanky".
Source: en.wiktionary.org