Strongly suspect it's age-related. I noticed the comment you responded to stated 'along with lower key words like "right" or "uh uh"'. The turn of phrase "low-

Strongly suspect it's age-related. I noticed the comment you responded to stated 'along with lower key words like "right" or "uh uh"'. The turn of phrase "low-key" became popular in the 2010s - I barely, if ever, heard it used before then - so my guess is that this user is in their twenties to early thirties.