rare0. [f. as prec. + -ISM.] A conversational expression; colloquialism.
1854. H. A. Wise, Sp., in Reed, Mod. Eloquence (1903), XV. 2146. Let the Whig of the North, abolitionized as he is, become a Know-Knothing, and let the Whig of the South, pro-slavery as he is, become a Know-Knothing, then, behind the curtain, these gentlemen can shake hands and honey-fuggle with each other. [Much laughter] This is what is called conversationism.
1864. in Webster.