A Bloodhound Operator, huh? Here you go in layman's terms on sawtooth edges then...
Any kind of edge perpendicular to radar waves causes them to be diffracted and reflected. In particular, the edges of landing gear doors and other access panels as well as the trailing edges of the wings produce strong radar returns. This effect can be minimized by sweeping the edges so they are not perpendicular to the radar waves. Thus, the edges of doors on the F-117 and other stealth aircraft are covered with small saw-tooths, or diamond-shaped edges that dissipate the radar energy in many directions.