Travel size relationships: When one goes somewhere for a specified length of time and finds somebody to sleep with for exactly that length of time. No more, no less. Normally only the traveler is aware of the actual lifespan of the relationship. These relationships are commonly encountered in military communities.
Hey bro, aren't you supposed to be seeing that hottie you met in Arizona while you were in training?
No way, that was just a travel size relationship! I'm back with my wife in CA now.
by Littlemissme May 16, 2013
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