[Trump.Deplorable]

Mostly at parties, that is how it spread

And the definitions can change as well since it would be like the “telephone game”

[nopardons]

Nope, I don't think that's how it went from N.E. to Pa. to Chicago in 30 years time and believe me, the parents didn't "teach" their kiddos the slang that was used when they were 14, that was still in use when their own kids were 14 or younger.

As is always the case, some words and phrases went by the way/stopped being used; yet others had staying power. And those words maintained their original meanings!

I can understand how some such slang migrated to different colleges, though.