The phrase "massive queues" refers to a large number of people waiting in a line or a long line that is very long and takes up a lot of space. Full definition
The polling stations closed with massive queues waiting to vote — mainly students. (labour-uncut.co.uk)
Members of the Public and Commercial Services Union (PCS) are due to desert their posts at air terminals, threatening massive queues at passport control. (labour-uncut.co.uk)
If HMV is in so much financial trouble, then why are there always such massive queues every time I go into Southend high street? (dealspwn.com)