1 definition by hansel fabien

A large, round, convex butt found on a male, first spotted in early fall of 2006 in the midst of suburban Pennsylvania. The dinsmore is similar to its female counterpart, "junk in the trunk," although the two terms are not interchangeable.
A- "Damn, look at that Dinsmore."
B- "Baby got back!"
by hansel fabien January 15, 2008
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