pretty cool dude
A generic understatement for approval of a relevant item. The word "dude" has no gender context, and may be used to refer to objects that are non-male and even non-human. Any incontinuities in speech may be used throughout the phrasing of the sentence.
String cheese is a pretty cool dude.
The British Regency Era is a pretty cool dude.
The British Regency Era is a pretty cool dude.