Britsh Army slang - To move away from your current location very qucickly (often under fire) becasue your position has been compromised by the enemy.

an act of freaking out over usually nothing; overreacting

while someones high, something happens that makes them nervous

To get out of an unsafe area
Some times associated with zombie apocalypse

was used in the early 1940's meaning to leave, to go,to travel somewhere

(Noun) bug out, Slang. to flee in panic; show panic or alarm .Someone or something that is feeling nervouse , paranoied, or inattentive,usually freaking out for no reason, overly dramatic or over exaguarting
(Verb)Someone or something that is doing that act of freaking out , acting upon paranoia.
Originated from the word Bug (noun)any insect or insectlike invertebrate,referring to the way an insect would appear,or act in movement, vibrations, indicating nervousness or Panic.

Word that originated in Smithtown East. Used to describe situations in which weird, unusual, extreme, or out of the ordinary things happen. These situations usually occur when you are under the influence of drugs such as marijuana, shrooms, E etc. The word was founded by the 08 class of smithtown east during the "Lost Boy Era." It has since spread through colleges and towns alike.