hřebec znamená v angličtina

bed-hopper▼(a person who is promiscuous or has multiple sexual partners)
noun

stallion [stallions]▼(uncastrated male horse)
noun
[UK: ˈstæ.lɪən] [US: ˈstæ.ljən]

stud▼(male animal kept for breeding)
noun
[UK: stʌd] [US: ˈstəd]