What Caused It??

[horseshoes]

Bit of a daft question really. I was spinning a swizzle stick around my empty tall glass last night, and as it went faster it rose up and flew out of the glass. What is the scientific reason for that? Thanks in advance.

[horseshoes]

Chaka, the glass is one of those tall, very straight, very slim glasses; in fact it's a Malibu glass.