What is Keep It Light?
The act and/or intention of keeping and event or conversation non stressful, calm, and breezy.
Todd: Hey man, what is the plan for tonight?
John: I don't know dude, lets just keep it light. I'm not down for nothing to thick.
Bill: What time is Jen going to get here?
Tom: At 6:00, but her cat died today, so make sure you keep it light.