WordNet sense 1 (language or humor that is down-to-earth):

saltiness

WordNet sense 2 (the quality of being composed of relatively large particles):

graininess, granularity

WordNet sense 3 (looseness or roughness in texture (as of cloth)):

nubbiness, tweediness

WordNet sense 4 (the quality of lacking taste and refinement):

commonness, grossness, vulgarism, vulgarity, raunch