She had a barbarous accent and continental manners, but Nejben found himself thinking often about her small, flat boy-breasts with their big, thumbable nipples.
In addition to the advantages of keyboarding on thumbable keyboards, all text fields support trackball mode cursoring, smart deletion, and text selection.
Adjective: "(of a book) compellingly readable or easy to thumb through"
1905 — H. W. Boynton, "Little Burney", The New York Times, 25 February 1905:
It is for these things that we give the "Diary" a place of honor among thumbable volumes on our shelves.
1990 — Arts Magazine, Volume 65, Issues 2-5:
One of last season's great pleasures was Sperone Westwater's exhibition of Wegman's drawings, and the catalogue they published for the occasion, William Wegman: Why Draw? […] preserves, in a satisfyingly portable and thumbable form, Wegman's adventures in what he calls this "deeply important routine mode of expression."
1998 — Philip E. Baruth & Nancy M. West, "The History of 'The Moving Image': Rethinking Movement in the Eighteenth-Century Print Tradition and the Early Years of Photography and Film", in Questioning History: The Postmodern Turn to the Eighteenth Century (ed. Greg Clingham), Associated University Presses (1998), →ISBN, page 115:
By reducing the scale dramatically, illustrating crudely and deliberately creating a thumable book for children, these late eighteenth-century graphic pirates turned Laroon's work into something more closely resembling the photographic "flip-books" that Carroll found so difficult to categorize.
But Cirio themselves have evidently spared no expense to produce what must surely be one of the most attractive and thumbable cactus books ever; do get a copy before it goes out of print!