bullshcoarse slang.|bʊlʃ| Abbrev. of next. 1919Downing Digger Dialects 14 Bullsh, (1) insincerity; (2) an incorrect or insincere thing; (3) flattery; (4) praise.1948J. B. Priestley Linden Tree 33 Look—I'm talking too much—and most of it bullsh, I suppose.