"A reverse scuff is the opposite of a forward brush". I'd say that judging by title of the dance that the reverse scuff would be like a pony pawing the ground with a front hoof.
STEP RIGHT, LEFT, RIGHT, SCOOT RIGHT, ROCK LEFT, BACK RIGHT, SCOOT RIGHT, SCUFF RIGHT BACK TWICE:
1-2
Step forward right, step forward left
3-4
Step forward right, scoot on ball of right (left knee raised)
5
Rock forward left raising right off the floor
6
Rock back on ball of right
7-8
Scoot on ball of right, step together left
9-10
Reverse scuff right twice
VINE RIGHT, HOP RIGHT/HITCH LEFT, 3-STEP TURN LEFT, HOP LEFT/HITCH RIGHT:
11-12
Side step right, step left behind right
13-14
Side step right, hop on right and hitch left
15-16
Face ¼ turn left and step left, pivot < turn left and step right
17-18
Pivot ½ turn left and step left, hop on left and hitch right
TURNING VINE RIGHT, SCOOT RIGHT, STEP LEFT, RIGHT, SCUFF LEFT BACK TWICE:
19-20
Side step right, step left behind right
21-22
Face ¼ turn right and step right, scoot on ball of right
23-24
Step together left raising right, step together right
25-26
Reverse scuff left twice
&
Step on ball of right behind left
&
Step in-place on ball of left
&
Step on ball of right behind left
STEP RIGHT, TOUCH LEFT, SLAP LEFT, STEP LEFT, KICK RIGHT TWICE, BACK RIGHT, LEFT TOE BACK:
33-34
Step together right, touch left toe beside right
35-36
Back hook left and slap left foot with right hand, step together left
37-38
Kick forward right twice
39-40
Step back right, touch left toe back
SHUFFLE LEFT, STEP RIGHT, ¼ TURN LEFT, SHUFFLE RIGHT, STEP LEFT, ½ TURN RIGHT:
41&42
Shuffle forward left (left-right-left)
43-44
Step forward right, ¼ turn left shifting weight to left
45&46
Shuffle forward right (right-left-right)
47-48
Step forward left, ½ turn right shifting weight to right
STEP LEFT, ½ TURN RIGHT, STEP LEFT, SCOOT LEFT:
49-50
Step forward left, ½ turn right shifting weight to right
51-52
Step forward left, scoot on ball of left