Perhaps from ora, apheretic form of ahora + le. Some other Mexican Spanish exclamations used to exhort are proparoxytone imperative forms ending with -le (ándale, apúrale, córrele, etc.).
- (Mexico) let's go, come on, hurry (used to exhort)
- (Mexico) oh my God, wow (indicates amazement, astonishment, excitement, surprise, shock, fear)
- (Mexico) yes, ok (indicates approbation)