But if they do survive, and find themselves without one or both of their palps - their equivalent of a penis - they will protect their would-be eater, and have benefit without the burden of their privates.
Couple tractor and first semitrailer as described earlier: A converter gear or dolly is a coupling device of one or two axles and a fifth wheel by which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig.
Tools[edit] 1  Dolly (tool), a portable anvil. 2  Dolly (trailer), for towing behind a vehicle. 3  Boat dolly or launching dolly, a device for launching small boats into the water.  Camera dolly, platform that enables a movie or video camera to move during shots.