Definition of cornstalks:
(n) :
(botany) The tough, fibrous stalk of a corn (maize) plant, often ground for silage after harvest.
(n) :
(botany) A single specimen of a corn plant once past the seedling stage and which may, at maturity, bear multiple ears of corn.
(n) :
(Australia, slang, derogatory) a non-indigenous native of New South Wales.
(n) :
(Australia, slang, obsolete) A non-indigenous person born in Australia.