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Webster 1913 Edition

Noun.

A tinker.

[Prov. Eng.]

tinkler ‎(plural tinklers)

(slang) ****
- 1983, John Wheatcroft, Catherine, Her Book (page 44)
  As his drawers came free, his tinkler leapt straight up. How different he was between the legs from Hindley, who had that darkness!
- 2006, Andrea D'Allasandra, House of the Screaming Clowns (page 42)
  Johnny felt a delicious surge of energy in his tinkler.

tinkler ‎(plural tinklers)