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1.
the people that a country doesnt want any more so they send them 2 a different country.people countries trade in exchange for crack.or just because their ugly.
aka-exchange students
"ah-me no speak english"
"who the HELL r them people talking funny?"
by K-Li and Morgan April 20, 2005
 
2.
Performing oral sex on someone of the opposite sex.
Hey, Kelsey--you KNOW when you get married you'll be ALL over the exchange!
by Rocco's modern life December 07, 2008