The phrase "snakes in boot" is often used to describe a situation that is unexpected and dangerous. Some synonyms for this phrase include "unexpected danger," "hidden threat," and "surprise peril." These terms can be used to describe situations where something that seems harmless can end up being dangerous, such as a seemingly innocent hike that leads to encounters with venomous snakes. Other synonyms for "snakes in boot" can be related to the feeling of betrayal or deception, such as "false security," "hidden agenda," and "false impression." Overall, these synonyms can help paint a picture of a situation that is not what it seems and is potentially hazardous.