He was so sketchy at the circuit party.
Since each circuit party occurs on a specific weekend and in a specific city once a year, and there are many parties on "the circuit", travel and planning are required. Travelling from party to party becomes part of a circuit boy's lifestyle of travel, networking and partying.
Some examples of circuit parties: White Party in Palm springs (April), Black Party in New York (March), the Black and Blue Ball in Montreal (October), the Blue Ball in Philadelphia (January).
These are often all-night and multi-day events, and party drugs such as ecstasy, GHB, ketamine and crystal are frequently taken by partygoers.
Tod: I don't have anything butch enough to wear and I'm all out of (drug of choice or availability).
Ted: I'm out of (drug of choice or availability) too. Let's call that fag hag Sue.
Tod: Great idea Ted! That bitch always has (drug of choice or availability).