"Flap off" is not a common phrase or term in English. It could potentially be interpreted as a whimsical or playful expression with no specific meaning.
In progress review
Department of Defense
Perform To Serve.
CASEVAC is Casualty Evacuation.
When a radar has you marked for sure.
30 minues after midnight
It means Drinking, F*cking, Fighting. It's a military term.
In a military context, "samprify" does not have a widely recognized or standard meaning. It may be a misspelling or misinterpretation of another term. If you are looking for a specific military jargon or concept, please provide more context or clarify the term.
The initials BRAC mean Base Realignment And Closure. This term is often used by the Government. More specifically, the term is used in the US military.
To flap your mouth
A Flap is a control surface that is used to kill the lift of a wing to allow the aircraft to descend. I've never heard the term "body Flap" but it must refer to a Flap or a "speed brake" that is located on the fuselage and is used to slow the aircraft. Military aircraft used speed brakes or Dive brakes to slow their speed when diving on a target to drop a bomb. Some aircraft with fuselage speed brakes is the A-1 Skyraider propellor aircraft of Viet Nam and I think the F-86 jet fighter.