They laugh the loudest who have least to lose.

The saying observes that the loudest amusement, mockery, or bravado often comes from people who face little personal risk if events turn out badly. Those with money, status, safety, or responsibility at stake may have less freedom to treat the matter lightly.

It can criticize detached spectators whose laughter ignores consequences borne by others. More broadly, it contrasts carefree reaction with the caution of people who would actually suffer from failure, loss, or public embarrassment; it comments on a recurring difference in perspective, not on everyone with little at stake.

Use it reproachfully when someone treats a risky or humiliating situation as funny while insulated from its consequences. It may refer to onlookers, advisers, or companions, and “laugh” can mean mockery, bravado, or carefree amusement rather than audible laughter.