How Brands Ruin Slang

From the Brands Saying Bae in the 2010s, to the “wassup” ads of the 90s, advertisers are always trying to find ways to sound cool. But when brands on social media use a slang word in their marketing, that basically guarantees it's over. We understand that brands didn’t come up with these words and that they're not part of the groups we think should be using them, but why? What makes a word slang,