Esti, osti, asti.

The most used sacre in the quebeker's (French Canadian) vocabulary. Is also refered to the "osti" in the Christian Church.

May be used as a noun or adjective.

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

go see ostie for a more clear definition

The most beautiful girl you'll ever meet, smart, kind, sweet, and lovable. Esti is awesome, amazing, intelligent, and friendly. She loves to talk, and listen to music, and read. She is athletic, and has many friends. If you meet Esti, you should try to become her friend, since she is the best, and people call her Esti Besti.

An Esti is someone who isn't close with many, but has close relationships with the people she trusts. She can be a bitch at times, but if you get close with her, she is one of the nicest people you'll ever meet. You are lucky if you have an Esti in your life. Esti is great in bed and great in makeout sessions. An Esti is one of the prettiest people you will ever meet, she always looks effortlessly good with her stunning smile, great face shape and the body of a model.

Someone who is really salty and likes to indirect a lot.

Estis means great in modern Latin