The awesome feeling you get listening to Panic! At The Disco. It is accompanied by singing the lyrics to a P!ATDsong, wishing you were Brendon Urie's girlfriend, and an insane desire to kill that freako who Brendon Urie'd Brendon.
(Friends are sitting around, when But It's Better If You Do plays on the radio)
Paris- Wow, Panic! At The Disco is awesome.
London- Totally. I'm having a Panic! Attack just thinking about them.