adv. (old colloquial).—Enormous, vast, very. (JOHNSON: ‘a low word.’]

1

  1849.  ROBB, Streaks of Squatter Life, 143. ‘That’s an ONCONSCIONABLE slick gal of your’n, Mounseer,’ says I, to begin with, and it did tickle his fancy to have her cracked up, ’cause he thought her creation’s finishin’ touch,—so did I!

2