Usually referring to a woman that seems like an easy target for a one night stand while being free of any negative attributes such as (but not limited to) being fat, ugly/unattractive, diseased, infected, completely intoxicated, etc...
Guy 1: Yo man this girl is going to be a total freasy for me the way she is grinding on me tonight!
Guy 2: Oh yea! You better tap that soon before she is tanked and useless!
Guy 1: As long as there is even a faint pulse she's still freasy in my book.
(verb) - Sweating that occurs after having eaten a large quantity of food containing MSG. Most often associated with having consumed a large amount of food at a Chinese buffet, especially meats. The sweat is characterized by it's uniquely powerful MSG scent.
I can smell the MSG sweats going on from the 10pounds of food at the Chinese buffet last night.