someone that causes an entire room of people to miss out on a funny joke, usually out of either shyness or selfishness, by solely mouthing the gem in a whisper to someone next to them. Thankfully, the "joke poach
er" completely solves this tragic dilemma in a swift act of altruism by restating it audibly.
Post-laughter, it is not uncommon for middlemen like the "joke poach
er" to become the target of animosity from the originator, even if said poacher gives them credit.