The Collaborative International Dictionary of English v.0.48:

Gully \Gul"ly\, n.; pl. Gulles. [Etymol. uncertain]
   A large knife. [Scot.] --Sir W. Scott.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gully \Gul"ly\, n.; pl. Gullies. [Formerly gullet.]
   1. A channel or hollow worn in the earth by a current of
      water; a short deep portion of a torrent's bed when dry.
      [1913 Webster]

   2. A grooved iron rail or tram plate. [Eng.]
      [1913 Webster]

   Gully gut, a glutton. [Obs.] --Chapman.

   Gully hole, the opening through which gutters discharge
      surface water.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gully \Gul"ly\, v. t. [imp. & p. p. Gullied; p. pr. & vb. n.
   Gullying.]
   To wear into a gully or into gullies.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gully \Gul"ly\, v. i.
   To flow noisily. [Obs.] --Johnson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gully
    n 1: deep ditch cut by running water (especially after a
         prolonged downpour)

Moby Thesaurus II by Grady Ward, 1.0:

125 Moby Thesaurus words for "gully":
   abysm, abyss, aqueduct, arroyo, bed, box canyon, breach, break,
   canal, canalize, canyon, carve, cavity, chamfer, channel, chap,
   chasm, check, chimney, chink, chisel, cleft, cleuch, clough, col,
   corridor, corrugate, coulee, couloir, crack, cranny, creek bed,
   crevasse, crevice, crimp, culvert, cut, cwm, dado, defile, dell,
   dike, ditch, donga, draw, dry bed, engrave, excavation, fault,
   fissure, flaw, flume, flute, fracture, furrow, gap, gape, gash,
   gill, goffer, gorge, gouge, groove, gulch, gulf, gullyhole,
   headrace, hole, incise, incision, irrigation ditch, joint, kloof,
   leak, moat, notch, nullah, opening, pass, passage, pleat, plow,
   rabbet, race, ravine, rent, rifle, rift, rime, river bed, riverway,
   runnel, rupture, rut, scissure, score, scratch, seam, slit, slot,
   sluice, spillbox, spillway, split, streak, stream bed, streamway,
   striate, swash, swash channel, tailrace, trench, trough, valley,
   void, wadi, water carrier, water channel, water furrow, water gap,
   water gate, watercourse, waterway, waterworks, wrinkle



U.S. Gazetteer Places (2000):

Gully, MN -- U.S. city in Minnesota
   Population (2000):    106
   Housing Units (2000): 66
   Land area (2000):     2.010076 sq. miles (5.206072 sq. km)
   Water area (2000):    0.008879 sq. miles (0.022996 sq. km)
   Total area (2000):    2.018955 sq. miles (5.229068 sq. km)
   FIPS code:            26270
   Located within:       Minnesota (MN), FIPS 27
   Location:             47.767185 N, 95.625386 W
   ZIP Codes (1990):     56646
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Gully, MN
    Gully