What is the definition of Mailed Fluid?

Alright, let's break this down. A 'ailed fluid' is like when someone decides to send a mysterious, gooey package via the postal service with a cryptic note that only they can decode. Imagine this: "My love, I've sent a mailed fluid - it's been in transit for days, leaving us both wondering if we've just hit the 'end-to-unidentified-entity' button on our sanity."

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Now, here's a sentence that might just give you the chill vibe: "The janitor discovered a mailed fluid in the recycling bin, leading to a full-blown existential crisis that would make a sci-fi movie proud."