(1)To preform an action, or display a behavior that contradicts your normal persona.(2)To unintentionally act like your under the influence of a hallucenogenic drug while sober.(3)Conduct unbecoming of a person of sound mind and body.(4)Brief mental impairment.
Verb derived from the term "(to) bug out". To retreat or flee, especially in a panic during a battle. In a non-military use, it means to depart quickly. Originated among GI's early in the Korean War (1950-1953) and entered civilian culture from there. Very similar to "bail out" used by aircrew in earlier wars and still in use today, sometimes as "(to) bail".