Investigate and analyze something that very little is known about. Gain a better understanding.
We need to get a handle on the situation before we move forward.
Bounce an idea off someone
To gain another person's initial impression of an idea they have not heard before.
Let's bounce that idea off Joe before we present it to our boss.
Put a spin on, or to spin
To modify a story to make it more favorable. (Previously "put a positive spin on")
The public relations team managed to put a spin on the story. "The public relations team managed to spin the story.
Float something
To describe a potential decision as an option to determine acceptance before committing to the decision publicly. (To see if the decision will float or sink.)
The politician floated the proposed legislation in his television interview.