The word 叽哩咕噜 is formed through onomatopoeia, where each character mimics a sound: 叽 suggests a chirping or squeaking noise, 哩 contributes a flowing phonetic element, 咕 imitates a gurgling or rumbling sound, and 噜 extends this with a murmuring quality, collectively creating a compound that replicates chaotic or indistinct auditory effects.