Green’s Dictionary of Slang

Tinker Bell n.

[the character Tinker Bell the fairy in J.M. Barrie’s Peter Pan (1904)]

(camp gay) a pleasingly plump person.

1972		B. Rodgers Queens’ Vernacular.
1979		D. Maitland Breaking Out 186: Hello, Tinker Bell. What’s that you’ve got there? Your wand?