A Verb. Usually applies to when on vacation or on a casual excursion, you take your wife/gf to a nice reggae bar for some music and nice times. Shortly there-after every rasta dude in the joint is having his turn with her and many times its more than just dancing!
Friend: Hey Bob, you've been down since you came back from your vacation last week. What gives?
Bob: I didn't what to say anything but while we where in Montego Bay, I took Rita to a Reggae joint and we got ""Jamaicaned"
Now all she wants to do is listen to Bob Marley cd's and have me wear a dreadlock wig while we have sex.