rustout

[ ruhst-out ]
/ ˈrʌstˌaʊt /

noun

an area or spot, as on the body of a car, that has rusted through: scratches, dents, and rustouts.

Origin of rustout

noun use of verb phrase rust out
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019