This resulted in many products being released without being playtested (some were tested on the sly), and a large number of products that were incompatible with the existing game system.
But there are rules -- the elders can openly, the young do it on the sly.
So, learn up on the rules before you go snapping photos on the sly.
Slouching on the couch is fine, but not if your wandering hands will be checking emails on the sly.
Written-word junkies can still get their fill on the sly.
Surely, the no-fly-list population does not constitute a military secret.
With them he manages to steal several military secrets and technology, including the zorglumobile.
We didn't know any nuclear or military secrets.
The program has been shrouded in secrecy since its inception for fear of revealing military secrets to potential enemies.
Even the existence of these towns was a military secret, and the towns themselves were closed to the public until after the war.