You'll get it in Theatre
Phrase used by Blanket Stackers prior to deployment to fool you into thinking that you will have all the kit you need to do your job while deployed. In civilian terms this would be called a blatant lie like "a big boy done it and ran away" or "I promise I wont come in your mouth".
Hero of getting it theatre was Boz Yoz in 04, who could not get the stores to issue anything to his boys, so he rung Bicester and got a whole OCL container of equipment sent out for everyone. Needless to say the BOWO and QM went seriously mega-ballistic and confiscated the lot and seriously chewed Yoz's balls. Finished Boz Yos's career, particularly as the repercussions went up the chain of contempt and into the Soldier magazine, Jan 05. Nice to know someone sticks up for the lads.