all systems go 

Everything is ready (from the use in aerospace industry as an indication that all preparations have been made to launch)

All systems go. We leave in 5 minutes.

all systems go by The Return of Light Joker May 13, 2011

all systems go 

when one is defecating and feels the urge to urinate in consequence

dude i was taking a huge dukie and i felt the need to let all systems go

all systems go by JLOBSTER January 24, 2011