When an internet troll can only think of one specific way to torment their victim online and that way involves stealing the username of that victim, or ripping off the username and stealing their gimmick, e.g if that person has a Deviantart account with a monster/horror theme and RPs as a werecreature, the troll will use that as the main gimmick (including claiming said character is his/her own totally original character).
"I'm not Dr Music. I'm my own original username/character Doctor Bloosic."
"Sounds like Copycat Syndrome to me."
Refers to da random meal-choice dat ya make in cases where you aren't familiar wif da types of offerings at a particular restaurant, often due to either da diner's being foreign-cuisine themed (i.e., Italian, Chinese, Hawaiian, etc.) or your not being accustomed to eating out in da fist place, and so instead of either asking yer friend who's treating you to choose "something tasty" for you or puzzling over da laminated dinner-options folder yerself, you just "enter default mode" or "go old school" by simply looking around at what meals other patrons are gleefully stuffing their cheeks wif, and then asking da waiter to serve you some of whatever dish looks/smells da best on said other folks' table.
My warm-natured tomboy friend Desiree took me out to dinner at a Mexican restaurant as a thank-you reward for my being such a helpfully-supportive friend to her; I wasn't accustomed to dat type of "savory 'n' spicy" fare, however, so I just observed a number of fellow diners' partaking of similar copiously-steaming and delicious-aromaed offerings, and then after my friend had ordered, I made a copycat menu-selection when asked which dish I wanted for myself.
When a person copies your lingo and they feel like they've scored a rat and some cheese because it feels so good when they use your lingo but they copied you, so rat hair gets stuck to their feet.
When someone copies your lingo you say to them....copycat scored a rat
Someone who makes you look like you're copying them (most of the times a "popular" person). Say one day you realize you have a thing for mom jeans, but you can't quite get them at the moment. Coincidentally some time later, they walk in wearing a new pair of vintage Levi's, and when you finally decide to buy a pair it looks like you copied them, especially if these kinds of events occur often.