Spell D-R, then make a "P" handshape and bounce it in the air twice as if shaking pepper from a jar.
VARIATION: You might also see this sign done by spelling D-R, then
using an "F" handshape bouncing twice in the air as if shaking pepper from a
jar. The circle of the "F" represents the lid of the pepper shaker.
American Sign Language University ™ ASL resources by Lifeprint.com © Dr. William Vicars