Is that a Bond reference? Apparently Vesper is also the name of a cocktail? I've only seen it as meaning "evening" (in German I think it typically refers to a cold dinner).
That explains it. I've kinda been in denial that there were any Bond movies after Brosnan so I thought this was more of a 70s era Bond reference than '00s.
Vesper Lynd broke Bond's heart, the committed suicide. The cocktail is named after the character.