1 [intransitive and transitive] formal
to laugh at someone or something and try to make them look stupid by saying unkind things about them or by copying them [= make fun of]:
Opposition MPs mocked the government's decision.
'Running away?' he mocked.
It's easy for you to mock, but we put a lot of work into this play.
2 [transitive] formal
to make something seem completely useless:
Violent attacks like this mock the peace process.
Her tone was mocking.
His lips twisted mockingly.
—mocker noun [countable]