What is a container flip charge?

Excuse me, could you please clarify what exactly a "container flip charge" refers to in the context of finance or cryptocurrency? I'm a bit unfamiliar with this term and am curious to know if it's a specific fee associated with some kind of transaction or service involving containers, or if it's perhaps a metaphorical term used in the industry. Could you elaborate on its meaning and provide an example of when it might apply? Thank you for your time and assistance.