Green’s Dictionary of Slang

dingy n.1

[ding v.1 (1); note HDAS, using same citation, has alternative sense ‘a beggar’, based on ety. ding n.2 (1)]

1. (US) one who has been beaten up.

Show quotations
[US]N. Algren Walk on the Wild Side 83: Broken men and breaking ones; wingies, dingies, zanies and lop-sided kukes; cokies and queers and threadbare whores.

2. see dingy adj.2 .