A phenomenon that arises during the end of road trips or long journeys which causes abnormal and sometimes hyper behavior in individuals. People may tend to become delusional to the point of where they either don't know what they are saying or will laugh at anything/everything.
After a 10 hour drive and only 20 minutes away from our destination:

Sally:"Sometimes I wish cow's could fly" *laughing hysterically*
John:"Jesus sally, traveler's phenomenon really got the best of you"
by Mrs. Timberlake November 30, 2009
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