liable to slip from the grasp, a position, etc. 3. not to be relied upon; cunning and untrustworthy: a slippery character.

What does slippery language mean?

In the field of informal logic, “slippery terms” are words that mean one thing to one person and something different to another. ... But when we work with people we don't know well, and we add differences in expertise, language, and culture, slippery terms create errors, misunderstandings, and rework.

What does a slippery situation mean?

not to be depended on; fickle; shifty, tricky, or deceitful. unstable or insecure, as conditions: a slippery situation.