In naval terminolgy condition "zulu-alpha" or ZA means to close up all hatches and openings to acheive water-tight and air-tight integrity. To close up a woman to condition zulu-alpha means to fill every orifice to acheive true air-tight integrity.
by Cheese Boy Lover June 16, 2007
Naval terminology. To achieve air-tight integrity of the ship's citadel. To achieve air-tight integrity of your arsehole after a night of lager and curry. To prevent a "sharting".
You going to be ok carrying the Queen mothers coffin after last nights run ashore chef? - Don't worry lads, my aft funnel is at Zulu Alpha.
by Pussers Dust August 14, 2010