Millennial is an identity given to a broadly and vaguely defined group of people. There are two wings of "Millennial" that are often at odds with each other: Generation Y (people born between 1981-1991) and Generation Z (born between 1991-2001). People of Generation Y often have characteristics similar to Generation X, which is why Generation Z will confuse Generation Y with Generation X and then claim to be the generation that represents "MIllennial," when in fact, birth years for Millennial range from about 1981-2001, just as the birth-years for Baby Boomers ranged from 1946-1964.
Both Generation Y and Generation Z can be called "Millennials," with the primary difference between the two being technology. Generation Y grew-up on personal computers, cell phones, and video game systems, while Generation Z has grown up on tablets, smartphones, and apps. Yet, the common ground between both generations is that both have been transforming and altering communication and identity--not just in the United States but globally.
Generically known as a worthless asshole. But more precisely, a prick is an incessantly annoying or obnoxious person who escalates their behavior the more they are ignored.
Most pricks need to relax.
Aloof means "at a distance," and not close. Shyness is often the result of being aloof. An aloof person usually needs tunnel vision for the tranquility and happiness to block out and ignore distractions that undermine his or her concentration. Yet, there are valid reasons to be aloof: such as, studying, work, or to maintain the structure of control within an organization or industry by filtering out and blocking unwanted contact.
The word aloof is often bandied about as a negative label as a way to attack an unwanted person by making them feel that it is his or her fault for being unwanted. An aloof person is likely to be more "things-oriented," rather than "people-oriented," but that is not proof that an aloof person is not equally capable of socializing--just not equally interested in doing so because people don't innovate or get rich by being the life of a party.
Roasting someone means that you know how to be tactfully mean (snarky) without being mean-spirited in poking fun at someone, teasing, ruthlessly ridiculing, trash talking, and even mocking them.
Roasting people that you know is usually a bad idea because people will believe that there is truth in every joke and might laugh in the moment but remember nothing but bitterness, which is why roasting should be reserved for when a person truly deserves it.
A groupie is someone that sleeps with a celebrity, usually a rockstar, and a groupie is usually a girl.
A groupie is someone who gets to be a fan rather than just a follower, while other people earn their stripe as a fan through loyalty without creepiness.