Definition of "dungarees"

I’d arrived at Heaven nightclub, underneath the Charing Cross railway arches, on a hot Sunday afternoon to find my friends had already gone in – you didn’t risk hanging back and missing your chance – so I joined the queue of kids dressed in the acid house uniform of Day-Glo dungarees and smiley T-shirts.

2018 July 1, Sharon Walker, “Thirty years since the second summer of love”, in The Guardian‎