Showing courage or determination; having guts or bravery; plucky and spirited.
From gut (the intestines, metaphorically meaning courage or determination) plus -y suffix, first used in the late 1800s.
The term 'gutty' is an interesting example of how humans metaphorically located courage in the stomach—cultures across the world associate bravery with belly strength, from Japanese 'hara' (belly) to expressions like 'having guts.'
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