2 definitions by Lakob

Top Definition
A rather untimely erection, usually unprovoked during the midday, usually as a result of jet lag.
"Oh, crap, Mr. Sunshine is coming up!"
by Lakob October 15, 2008
The idea or theory that because of the shift of time zones when traveling, morningwood may occur at an earlier or later time than usually. The name for this untimely morningwood goes by the name of Mr. Sunshine. This effect can be especially bad when traveling on a high school or college trip.
"Thanks to jet lag, I've had an encounter with Mr. Sunshine..."
by Lakob October 15, 2008
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