11.a barrel of fun<非正式>开心；令人愉快的人；使人开心的事
He was always laughing and joking; he was a barrel of fun.他总是笑声不断, 笑话连篇——他就是个开心果。
This game is a barrel of fun.这个游戏很好玩。
She had a barrel of fun for three full years before she became respectable again.她快活了整整三年, 之后才恢复了好名声。