An expression if disapproval.

1. An uncircumcised penis.

2. The dick of a dog.

When you have to take a shit so bad that the tip of the terd slowly makes it's way out of your anus and quickly goes back inside. (The same way a dog's penis moves when it becomes erect).

When a vehicle is exiting a parking lot and waiting for an opportunity to drive into the road lanes while positioning the front bumper or front half of the vehicle to block incoming traffic.

A dog dick is when a guy's pubes start to migrate up the shaft. Usually 1-2 inches up the shaft is hairy. Trimming only makes it grow in thicker.

Despite your best efforts, external forces make it impossible to succeed.

Dog's Dick is a word mostly used to describe someone who is useless, It can also be used as a way of offending and verbaly abusing people very deeply but without saying any of the incredibly harsh words such as Cunts or Fuckers.

Although Dog's Dick doesnt really sound offensive,the user and certainly the recipient will understand its direct and degrading nature.