The way my father taught my brother and I , it is a boxing combo.
They call it The Old One Two because it is practice's as such.
1, 1 2, 1 2 3, and
continues up to 5
The actual combo though it this.
1. Jab
1,2. Jab jav
1,2,3. Jab jab
uppercut
1,2,3,4. Jab jab
uppercut jab
1,2,3,4,5. Jab jab uppercut jab hook. (Left or right)