- sis-boom-bah
[sis-boom-bah 词源字典]
- cheerleading chant, originally (1867) an echoic phrase imitating the sound of a skyrocket flight (sis), the burst of the fireworks (boom), and the reaction of the crowd ((b)ah).[sis-boom-bah etymology, sis-boom-bah origin, 英语词源]