Bosh \Bosh\, n. [Cf. G. posse joke, trifle; It. bozzo a rough stone, bozzetto a rough sketch, s-bozzo a rough draught, sketch.]

Figure; outline; show. [Obs.]

Source: Webster's Revised Unabridged Dictionary (1913)
 

Bosh \Bosh\, n. [Turk.]

Empty talk; contemptible nonsense; trash; humbug. [Colloq.]

Source: Webster's Revised Unabridged Dictionary (1913)
 

Bosh \Bosh\, n.; pl. Boshes. [Cf. G. b["o]schung a slope.]

1. One of the sloping sides of the lower part of a blast furnace; also, one of the hollow iron or brick sides of the bed of a puddling or boiling furnace.

2. pl. The lower part of a blast furnace, which slopes inward, or the widest space at the top of this part.

3. In forging and smelting, a trough in which tools and ingots are cooled.

Source: Webster's Revised Unabridged Dictionary (1913)