What is Root Canal?
1.
The red-light district of Venice
Dad: I met your Mother in Venice...
Son: (please don't say in the Root Canal!)
Dad: ..in an area called the Root Canal
Son: aaaahhhhhh faaarrrrrkkkk
See
2.
For a guy to recieve head and juice all in the partners mouth.
I just gave this one bitch a root canal like no otha foo'.