Definitions include: Good for You My Friend, however it is a double acronym and also means Go Fuck Yourself Mother Fucker. This is an extension of [GFY] with a more polite/offensive meaning.
Definitions include: it's the one who a task or assignment defaults too if the task/assignment goes undone. Quite often the tasks/assignments assigned to someone as the result of a meeting or action item and that someone is referred to as the "stuckee".
Definitions include: To speak with eloquence, wit, and charm; to be particularly articulate and loquacious. The phrase is often used in a lighthearted or humorous context, and may suggest that the speaker has been inspired by some supernatural force or source of inspiration, such as the Blarney Stone in Ireland. It can also imply that the speaker has had a few drinks and is feeling particularly gregarious.