现代美国俚语对于英语的影响，有着褒贬不一的看法，有的人认为俚语很“新潮”，可推动英语的发展，有的人则认为俚语“糟蹋”了英语。究竟对美国英语如何评价，人们所见不尽相同或完全不同。语言毕竟难以尽善尽美，白玉无暇；总是既纯又不纯，既有正确又有谬误，而且历来如此，并不足怪。“目前美国许多口语表达方式十分流行，听起来也十分悦耳，用起来‘速冻快餐’难样令人开胃，但实际上英语被搞得更加混乱，更加不伦不类。”[12]而美国俚语在美语中占据的分量越来越重了，在人们日常生活中的使用也越来越频繁了，或者说是美国人生活中必不可少的一种语言交流方式了。因此现在美语对于英语的影响很大程度体现在俚语上。
Modern USA slang is with regard to English effect, have appraise the view differing, somebody thinks that slang is very "newfashioned" , may drive development of English , somebody to think that slang "has wasted" English then. How what actually happened is appraised to American English, what people is unable to see completely identical or is totally different. Language is difficult to be perfect after all , white jade is too busy; Always both pure and no pure, both have correctly and have falsehood, and it has always been so, less than strange together. "But at present a lot of spoken language of USA express way being popular for very , sound also very pleasing to the ear, use appearance difficult to rise `to quick-freeze a snack' to make peopel appetizing, English is engaged in in confusion , especially neither fish nor fowl in fact". The component that USA slang occupies in American English is more and more heavy but , the daily life hits the target in people being put into use also Yue Lai Yue frequently in other words , being that essential one kind language has exchanged way in American life. Now American English embodies in slang therefore to very big English effect degree.
现代美国俚语作为一种交际工具，是英语语言中丰富多彩的、极富有活力的成分。它服务于社会，以社会为基础。随着社会的发展，其中有一部分俚语由于不再适应社会，不再实用，慢慢地从社会这个大舞台上退出。而有一部分仍然活跃，经久不衰，或者慢慢地进入标准语的行列。与此同时，新的俚语会因社会和时代的需要而如雨后春笋般出现，填补其中的空白。1960年文特华斯和弗莱克森主编的《美国俚语词典》（Dictionary of American Slang）收录了15,000个俚语词，据他们估计，其中美国人常用的有2000多个。而到了1961年，玛里安韦伯斯特的“THE INTERNATION”在同意前者的词义的情况下只列出了500多个俚语词，可见在这一年之中有如此多的俚语成为了标准语，衍变速度有多快，同时它们留下的空缺又由新的俚语添补上。
Modern USA slang is one kind of social intercourse implement, component being that English of colour and variety , is rich in a vigour extremely in language. It serves Yu society , takes society as basis. Have a part of slang with the development of society , among them since adapt to society no longer , no longer pragmatic, this withdraws from slowly from society on big stages. Have a part not to decline but still active , durable , enter or standard language ranks slowly. Need that meanwhile, new slang will be because of society and times but if bamboo shoots after a spring rain as appear , fill in blank space among them. (Dictionary of American Slang) that culture Tehuasi and Fulaikesen edit has included 15,000 slang in 1960 word, according to their estimate more than 2,000 American having among them in common use. But have arrived at 1961 , have listed more than 500 slang only under the "THE of Malian Webster INTERNATION " condition in the meaning of a word agreeing with the former word, It can be seen that the slang having being more like this in this in 1 year has become standard language, evolve how quick be speed , the vacant position that they leave at the same time replenish is listed in from new slang.
语言来自于社会，来自社会大众。现代美国俚语的发展趋势是简洁明了，正是由于其大众化，俚语的委婉含义在不断地弱化，普遍性在不断增强，逐渐地成为大众语言不可缺少的一部分。正是因为人们对俚语认识的不断加深，社会的不断进步和开放，所以我们相信现代美国俚语有着强大的生命力和美好的前景。
Language comes from in society , comes from masses of society. Modern USA slang developing trend is to clearly understand , to exactly be since the person is popular concisely , tactful slang import is strengthening unceasingly in ceaseless field reduction , universality , becomes the essential masses language part gradually. It is just because that ceaselessness that people knows to slang is deepened by,society's ceaselessness progress and opens to the outside world, therefore we believe that modern USA slang has life-force and a bright future big and powerful.