Through "meme culture," young people are inventing all sorts of new linguistic constructions purely because they think they sound funny. The interesting thing is that these jokes don't end at a definite point. What makes a joke a "meme" is that it continues to be repeated. When among their friends, they'll continuously intersperse the language they use with them to make it more engaging, and perhaps even more clear. It seems very likely to me that this "memery" will eventually end up pushing some real linguistic change in our language.
This is not only happening in English. My native Dutch language is perhaps even more affected by it. Kids are deliberately picking out interesting mannerisms and repeating them to comic effect. A very strong example of this is the popular "Kud" YouTube animation channel and their more recent video game streaming channel "Lekker Spelen." Both names are already instances of what they're more generally up to. "Kud" changes a letter of the obscene exclamation "kut" to jokingly give themselves some plausible deniability. "Lekker spelen" appropriates the adjective "lekker" into their brand, which directly translates to "tasty," but is strangely applied to a very broad range of things in Dutch. One thing they'll do in their program is use other words like "sappig" (juicy) and "knapperig" (crunchy) in analogous ways, which isn't done in ordinary language. Kids are copying these mannerisms not only in the Netherlands, but also in Belgium, where they aren't at all usual.
I was wondering whether this is a new mechanism. One argument I could see for this case is that it requires social media in order to take hold. You need a degree of linguistic self-awareness to joke in this way, and that might not have existed before the mass communication enabled by the internet.
But the case that it isn't new can be made as well. After all, there have always been special individuals deeply aware of the way language is generally used. William Shakespeare certainly belonged to this group, cleverly manipulating language to make people laugh. No one has been more influential on the English language than him. Another popular example I'd cite is Cockney rhyming slang. It seems evident to me that this is a very funny self-aware kind of dialect. Maybe I'm wrong on that. The fact that I can't find many sources discussing this aspect kinda shocks me.
I'm curious about a linguist's take on all this. Is humor becoming a driving force in linguistic change? Has this always happened or is it something new? Are there any established linguistic theories describing this kind of thing?