What 'old skool' locking? where does it come from?

Origininating from the 1970s locking is one of the funkier forms of urban dances

Locking (originally Campbellocking) is a style of funk dance, which is today also associated with hip hop. The name is based on the concept of locking movements, which basically means freezing from a fast movement and "locking" in a certain position, holding that position for a short while and then continuing in the same speed as before. It relies on fast and distinct arm and hand movements combined with more relaxed hips and legs. The movements are generally large and exaggerated, and often very rhythmic and tightly synced with the music. Locking is quite performance oriented, often interacting with the audience by smiling or giving them a high five, and some moves are quite comical in nature. A dancer who performs locking is called a locker. Lockers commonly use a distinctive dress style, such as colorful clothing with stripes and suspenders.

Locking was originally danced to traditional funk music, such as that produced or performed by James Brown. Funk music is still commonly favored by locking dancers, and used by many competitions such as the locking division of Juste Debout. Locking movements create a strong contrast towards the many fast moves that are otherwise performed quite continuously, combined with mime style performance and acting towards the audience and other dancers. Locking includes quite a lot of acrobatics and physically demanding moves, such as landing on one's knees and the split. These moves often require knee protection of the sort.