An old reference to a relatively small gathering of people, mostly friends, where about two-thirds of everyone's drinks are spiked with LSD, and the lucky individuals of the party trip out while the people who have no LSD in their drinks are responible for babysitting the trippers.
Buttons has also become a slang term for mescaline, peyote, or psilocybin mushroom caps.
PERSON 1 - "John's party last night turned into another game of buttons."
A series of nuts & bolts that hold a 3 piecewheel together. These wheels are very expensive because of the forging process and the ability to stagger offsets to create large lips.