1. the best something can be
this is probably as good as it gets
This phrase is used to describe a situation or feeling of things being the very best they can possibly be. if something is 'as good as it gets' it cannot be improved upon. This phrase is often used ironically to mean the opposite, so be careful with intonation when using this in spoken English. You will hear it in professional and social situations. A similar phrase is ‘on top of the world’ or ‘at the peak’.