Can we please explicitly define "toxic masculinity"?

As is customary within this generation, terms are overused in a variety of different contexts where the definition of the term loses meaning. "Language evolves" has become an excuse to not actually explain what something means.

I feel people are starting to talk past each other on this, so given the relevance of the topic let's try to give a very specific definition to this concept so we're all on the same page when it comes to addressing this issue.

No links to 3 hour university lectures or textbook recommendations would be preferred. Let's be honest, the attention span isn't there for most people.