It means very strong punishment. Beating, mute, zurra, fuetera. In sports slang, triumph by very bulky score. It can refer to various sports such as football, baseball, basketball.
Beating : ( s . f . ) 1- Beating, zurra, mute, especially when a stick or any other blunt object is used to inflict punishment. 2- In football, a goal that tips one team to another in a match.