Are you a low-key annoying parent? Aren’t we all? The phrase “low-key” expresses a lackluster feeling that’s analogous to “sort of." Depending on where you look, low-key can be spelled as one word, ...

“Bet,” “dat part,” “chi,” “low-key,” “mama” — words and phrases that would give a Victorian child an aneurysm. Us 21st-century folk have developed personalized social lexicons influenced by our ...