a variation of the exclamation "sweet", but usually in a very high-pitched voice. the e's might also be dragged out for extended periods of time. pretty cool the first time you say it, but after about number two or three of saying it, gets very annoying. use caution when saying excesseively, you might get bitch-slapped.
"man your new ride is schweeeeeeeeeeeeeeeeeeeeeeeeeeeeet"