| Subject | English | Russian |
| inf. | have fun at someone's expense | потешаться над (кем-либо Val_Ships) |
| amer. | have fun at one's expense | подшутить над (кем-либо Val_Ships) |
| gen. | have fun at one's expense | насмехаться над (кем-либо; I think he's having fun at our expense. Val_Ships) |
| gen. | have fun experimenting | экспериментировать в своё удовольствие (Technical) |
| adv. | have fun filling the pages | Развлекайтесь, заполняя вкладки |
| gen. | have fun on the May holidays! | с майскими! |
| gen. | have fun reading! | Приятного чтения! |
| saying. | you can't just leave and have fun before work is done | Сделал дело-гуляй смело (VLZ_58) |