"No disrespect, but like hell, you do."What does the phrase "like hell" mean in this sentence? What is the whole meaning of the sentence.

First notebook entry: Introducing myself Hello,everyone.My Chinese name is Sun WuJi and English name is Wolky.I am studying as a sophomore in the NorthWestern Polytechnial University of China now.At spare time,I'd like to read books play basketball and PC games. As you know,English has already become a essential subject in Chinese students' schedule.What's more?The capability of using English play an important part on job hunting nowadays.In this case,I expect a big improvement on my English skill.Besides,I intend to go abroad after I finish my under-graduate study.Excellent English will serve to my intention.So,I expect to learn English well.I need assist.