On: Social media is a cause, not a correlate, of menta...

[TheGeminon]

Slap means really good in this context, e.g. "this song really slaps".

This makes me want to make a generational/chronological slang chart now

[dolebirchwood → TheGeminon]

Thanks, just edited my post to link to the definition.

Guess I'd fall under the generation that would have said "rock" instead (although the Amish most definitely do not rock).