Grundy
Definition 1 of 2

Context
Understanding the informal nature of the word can help ensure appropriate usage.

In casual conversations, it's perfectly acceptable to use 'grundy' amongst friends.
Cultural Reference
Be aware of regional usages; in Australia, it's commonly understood.

In other English-speaking countries, people may not recognize it as easily.
Nuance
Avoid using it in formal settings to maintain professionalism.

Using 'grundy' in a workplace or formal gathering may come across as inappropriate.
Compare with
prude
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension