n.an insignificant student who is ridiculed as being affected or studying excessively
同义词：swotgrindnerdwonk
英汉双解大词典
dweeb/dwiːb/(dweebs)
1.
N-COUNT（可数名词）
If you call someone, especially a man or a boy, a dweeb, you are saying in a rather unkind way that you think they are stupid and weak. 笨蛋; 呆子 [美国英语][非正式]