A going-away party was a gathering held to honor an individual who was leaving the company of others.
In 2151, several crew members of Enterprise NX-01 planned a going-away party for T'Pol. Doctor Phlox warned her about it while discussing her upcoming transfer off the starship. (ENT: "Shadows of P'Jem") Later, when asked by Trip Tucker whether anything frightened her, T'Pol recalled the daunting prospect of having such a party. (ENT: "Oasis")
In 2154, Tucker was to have a going-away party in Enterprise's mess hall due to his pending transfer to the Columbia. He invited T'Pol, but she continued to express her surprise that he was moving on. (ENT: "Affliction")