For most units, planning leave is like planning your vacation with a civilian job. You talk with your boss, make sure everything is covered, fill out the forms, get it approved, etc. It's not a big deal. I took a month off to go tour Europe once when I was in the Army.
defecate. 1  to void excrement from the bowels through the anus; have a bowel movement. 2  to become clear of dregs, impurities, etc. 3  to clear of dregs, impurities, etc.; purify; refine.
Noun. 1. body waste-waste matter (as urine or sweat but especially feces) discharged from the body. excrement, excreta, excretory product, excretion. faecal matter, faeces, fecal matter, feces, ordure, BM, dejection, stool-solid excretory product evacuated from the bowels. fecula-excreta (especially of insects).