A rapid alternation of sung or played musical tones or notes is the definition you would find if you were to look up the word trill in the dictionary. Many people outside of the hip-hop community probably never heard of the word. For those of us who know their southern hip-hop history, the legendary hip-hop group UGK, also known as the Underground Kingz, created the word trill. To us, trill means something far different than a musical tone. It is often a word that people live by, and it encompasses many different aspects in your way of life and way of thinking.
Trill is the combination of the words true and real. To be trill, means that you stay true not only with yourself, but also with the people around you. You are honest, and you are not afraid to tell someone the truth, no matter how much it hurts. It is the highest form of being true, as some people like to call "keeping it real." You can only get there by being true day in and day out. If you stray away from this, people will consider you to be "fake" or fraudulent.
Trill also brings a sense of unity. You do not turn your back on those who help you and those who are your friends. You do your best to make yourself available to those who need you, and you try to make everyone associated with you thrive with you in your success. If someone refers to you as being "trill," it is a sign of respect. They realize that you are true to your word and that they can put all of their trust into you. They can depend on you for whatever they ask of you, and they know that you will not let them down.
Trill can also be associated with being "laid back" and "chill." You are an easygoing person, but if someone treats you the wrong way, they will regret it. You do not care what people think of you, and the influence of others will not affect you. You know how to be yourself, and you have your own type of style. The aura that surrounds you makes people want to know more about you, and become affiliated with you.