Empty bus means in slang: Chinese for “Empty Bus” Ji Che You Jie: This term is used in Hong Kong to refer to bus routes with low usage. It literally means “a bus without passengers”. This is due to repeated routing, bus routes or other transport methods, as well as low frequency or high demand routes. Here are some examples of routes NLB Routes 1, A35, KMB Routes 2D, 14H, 32H, 46, Citybus Routes 43M, W1, NWFB Routes 18X, 797M, MTR Bus Route K75, Cityflyer Route A20, Long Win Bus Airport Route A33, etc. (in Slang Dictionary, added by Mason Rios)