The act of reverse mounting a person's mouth with one's genitalia to give a temporary pubic hair beard. The pubic hair acts as a beard "dickie", if you will. The mountee can be male, but a chinwig is usually applied by a male to a female.
Dude...I totally gave your mom a chinwig last night.
A child riding on the back of an adult Squid's motorcycle, who are usually dressed by the adult in the same attire as the adult to include: shorts, sandles or tennis shoes, t-shirt, brain bucket, and always lacking gloves and jacket.
"Hey, look at that sKwID on the back of that GSX-R1000. His parent should be more responsible, and put some gear on him!