The party was full of ding-a-lings doing juggling acts that made everyone laugh.

ding-a-lings 是一个非正式的口语表达，由拟声词 ding-a-ling 加复数形式构成。ding-a-ling 模仿铃铛的声音，引申为"行为古怪滑稽的人"，常带有幽默色彩。这里指那些用杂耍表演逗乐大家的怪咖。