IPA: /ˈdʒɒs.tlə/
KK: /ˈdʒɑːs.lɚ/
A person who pushes or bumps into others, often in a crowd or during a competition.
The jostler moved through the crowd, trying to get to the front of the line.
Jostler originates from the Middle English 'jostlen', which is derived from the Old French 'jostler', meaning to push or shove. The word describes someone who pushes or shoves in a crowd or during a contest.
Think of someone who is 'pushing' or 'shoving' in a crowd — that's what a jostler does.