If you think a man's sense of humour is silly or rude, you can describe it as schoolboy humour.
例句
...tiresome schoolboy jokes.令人厌烦的愚蠢笑话
英汉词典释义
n.
(中小学的)男生
Bob is a fine type of schoolboy.鲍勃是男生的典范。As a schoolboy,he showed every sign of genius.当他还是个小学生的时候,就显示出了天资聪慧。A schoolboy was pulled up,because he rode his bike too fast in the crowded street.一个男学生被截住了,因为他在交通拥挤的街上骑快车。A schoolboy miraculously survived a 25 000-volt electric shock.一名男学生在遭受2.5万伏的电击后奇迹般地活了下来。