Baarmp is an extremely versatile expression coined by the famous fire shell-spitting Yoshi of Super Mario Land! Baarmp can be used in a variety of phrases and such. Typically, it is used as a verbal forewarning of projectiles en route to kill you. However it can also be used to describe basically any human emotion when there is no other expression available.
Brandon: (Totally unaware of the incoming projectile from across the desk while fully concentrating on his current project.)
Bob: (Eyes ablaze with fury) "BAARMP!" (Launches a ball of wax, pegging Brandon in the head.)