Lewis & Short

follis, is, m. [cf. flo].

  1. I. Lit.
    1. A. A pair of bellows: formae, quas vos effici sine follibus et sine incudibus non putatis, Cic. N. D. 1, 20, 54; cf.: folle fabrili flando accenderunt, Liv. 38, 7, 12; Verg. G. 4, 171; id. A. 8, 449: Hor. S. 1, 4, 19; Pers. 5, 11.
    2. B. A playing-ball inflated with wind, a windball: ego te follem pugillatorium faciam, et pendentem incursabo pugnis, Plaut. Rud. 3, 4, 16: folle decet pueros ludere, folle senes, Mart. 14, 47, 2; 4, 19, 5; cf. folliculus, I. B.
    3. C. A leathern money-bag: et tenso folle reverti Inde domum possis, Juv. 14, 281; so Dig. 35, 1, 82; Veg. Mil. 2, 20; Plaut. Aul. 2, 4, 23.
      1. 2. Transf., a small piece of money: centum folles aeris, Lampr. Heliog. 22: quinquaginta folles petere, Aug. Civ. D. 22, 8; id. adv. Crescent. 3, 29.
    4. D. A cushion or pillow inflated with air, a wind-cushion, Lampr. Heliog. 25, 2.
  2. II. Transf., the stomach: devorata in follem ventris recondere, Macr. S. 7, 4.
    Poet., puffed cheeks: tunc immensa cavi spirant (causidici) mendacia folles, Juv. 7, 111.