make a joke of
US /meɪk ə dʒoʊk əv/
UK /meɪk ə dʒoʊk əv/

1.
拿...开玩笑, 不当回事
to treat something serious as if it is funny or unimportant
:
•
He always tries to make a joke of his mistakes, but sometimes they are serious.
他总是试图拿自己的错误开玩笑,但有时它们很严重。
•
You shouldn't make a joke of someone's feelings.
你不应该拿别人的感情开玩笑。