'to push in' is also used. That guy just pushed in. That guy just jumped the queue.

Jessie is correct above. In the UK we would say "Jump the queue" or sometimes "skip the queue. " I've never heard "cut in line" used in Britain but it's common in the USA. Hope that helps Gordon

Both expressions would be a little different: Jump the queue (not jump the line) Cut in line (not cut in the line) They are both used but I think 'jump the queue' might be more common British English but 'cut in line' whereas might be common in American English.

I've never heard "jump the line" used before, although "cut in line" is very common.