Queue-jumping is the name of that unfair move — the act, not the verb. You say “Queue-jumping is rude,” or “They were accused of queue-jumping on the waiting list.” Same idea as queue-jump: getting something before people who waited longer. This -ing form is the thing people argue about, especially in British news and politics (housing lists, health care), where there may be no street queue at all. You can put it in front of a noun: a queue-jumping row. The feeling is still 插隊: unfair, and said with heat. Americans understand it, but they more often talk about cutting in line for the physical case.