Did anyone else get told in middle and high school that they were ‘lagging?’

Did anyone else get told in middle and high school that they were ‘lagging?’ It’s definitely more of a modern, gen z type insult. My stutter first started in sixth grade, but only got really bad in seventh grade. I’ve met all kinds of jerks about it, and most people all think that they are hilarious by insulting me with their stupid jokes. They’re all the same; they have like one joke that they repeat phrased differently over and over - it’s almost like THEY’RE the one stuttering. A lot of people are really impatient. My own psychiatrist even got pissed at me a lot when I’d talk to him over the phone about my problems but he couldn’t understand what I was saying. He’s an asshole and always has been. My older brother’s always been mean about it too, even as he was at the end of high school 18 years old. He still tells me to ‘just talk’ and gets annoyed with me, but insists that he is trying to ‘help’ me. Some people are understanding, or at least try to be, but the majority of people just cannot be bothered enough to care or be patient. They say their little insults and mean things that serve the same purpose and either think they’re hilarious or delude themselves into thinking they’re helping. If these people even tried to put themselves in my shoes for even five seconds in a conversation they’d stop their jokes. But that day will never come.