The idiom "hear on the grapevine" means to hear something about someone or something that is not necessarily true, often as a rumor or gossip. It refers to information that has been passed along through word of mouth and may not have been verified or confirmed by any official sources.

"Bat an eye" is an idiomatic expression used to convey surprise or shock, usually when someone does something unexpectedly or makes a revelation that catches people off guard. The phrase is often used as an exclamation of astonishment and can be used in both positive and negative contexts.

The idiom "under siege" means to be surrounded or under attack, especially by a group of people or entities that are hostile or oppressive. It can also mean to be in a difficult or dangerous situation, where one feels besieged or overwhelmed.

The idiom "drop off" means to leave someone or something at a specific place, typically without staying to see if they are being picked up. It can also mean to discontinue doing something or to give up on an idea or plan.

The idiom "as long as" is a conjunction that is used to connect two clauses, expressing the idea that something must be done or maintained, provided that certain conditions are met.