Meaning ofbeat offin English

Verb

1. to drive away with force; repel
   The dog will beat off any stranger who approaches the house.
2. to repel or defeat something
   The immune system helps beat off infections and diseases.
3. to masturbate (male self-stimulation)
   He started to beat off in the shower, lost in his own thoughts.
4. to masturbate (usually male, self-pleasure)
   Men who beat off regularly may experience a decrease in refractory period.