A Scotch coin, worth the sixth of a penny; so called from
Bothwell, a mint-master.
“Fair play, he car'd na deils a boddle.”
Burns: Tam o' Shanter,
To care not a bodle
= our English phrase, “Not to care a farthing.”
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Bodle from Fact Monster: