During the estrus or heat stage of her estrus cycle, her urine contains pheromones and hormones, both of which signal her reproductive state to other dogs. This is the reason that dogs in heat will attract other dogs, particularly males.
smock. 1  a loose, lightweight overgarment worn to protect the clothing while working. 2  to clothe in a smock. 3  to draw (a fabric) by needlework into a honeycomb pattern with diamond-shaped recesses.
buttock. 1  Usually, buttocks. (in humans) either of the two fleshy protuberances forming the lower and back part of the trunk. 2  Sometimes, buttocks. Nautical. the aftermost portion of a hull above the water line and in front of the rudder, merging with the run below the water line.