By Golly

The Slang Dictionary Etymological Historical and Anecdotal · 1913 · p. 6
an ejaculation, or oath; a compromise for “by God.” By gum is another oblique oath. In the United States, small boys are permitted by their guardians to say GOL DARN anything, but they are on no account allowed to commit the profanity of G—d d——n anything. A manner of “sailing close to the wind” which is objectionable to the honest mind. A specimen ejaculation and moral waste-pipe for interior pa ion or wrath is seen in the exclamation— BY THE EVER-LIVING JUMPING-MOSES —a harmle and ridiculous phrase, that from its length is supposed to expend a considerable quantity of fiery anger.
Readham'da tam maddeyi gor →