这些都是超级口语化的词语，我想大概可以说成下面的意思吧： 盖了！that`s great! or that`s amazing~ 神了！oh`God like! or pretty well! 得得得 stop it ! or just fine! 去去去 go and leave me alone 是按照自己的意思理解的，不过我的英文水平有限，仅供参考。

给你几个简短的翻译： 盖了！：awfully great! 神了！：Unbelievable! 得得得！： ok,fine! 去去去！：JUST go away!

first,i have to tell u ,all of these phrases are kinda beijing dialect,that's why that guy from south of China got them all wrong! 盖了，here means:great, u've done an exellent job 神了，means:incredible,it's not like what a human can do,but in a good or positive way ，not inhumane!thus,神了 is stronger than 盖了 when you try to say sth or sb is good. 得得得,to me,i would use it when i feel so bored when someone is pushing me to do something,so i would say it to stop them saying or repeating something boring,so it's like a little impolite and complaining,you can translate it as "enough!stop saying that,i know it already" 去去去，to me,it means "do what you should do and leave me alone and stop bothering me!" so, it's not so polite either

盖了，you know, 盖as a verb means 'to cover sth', so 盖了means: it's so great that anything else is overshadowed. 神了, 神means divine, so 神了often used to describe sth is so unbelieable, even beyond human logic. 得得得, you may understand it as 'save your breath!' 去去去, is a little bit rude, means both 'to go away' and 'save your breath', depends on the conversation context.

These sentences needs senarioes to use with. 盖了！ (express some people praise some peolple or something with surprise and excited, equal to)amazing! That's great! 神了！ (almose the same with 盖了, but 盖了express more praise, and 神了express more surprise, equal to)marvelous, uncanny,miracle 得得得 (1. somebody don't want to continue talk some topic with some people,can say it impatiently, equal to) stop talking! (2. somebody want to say something he/she do not want to happend and have avoid it happend already really occar, he/she is a little angry and despondently, especially when the careless or stupid listener make mess of the things.sometimes we say这下你满意了？following this sentences to express the irony and little angry emotion) 去去去 (somewhat like 得得得, stop somebody say or do something, want to drive the listener away,want to keep a distance with the listener,equal to)go away, leave me alone, stay away from me, keep away from me.