The barely noticeable mark left when a naked buttock is heavily pressed against a surface, like glass or stainless steel, much like a thumbprint or fingerprint. A clear bumprint will contain a muff or bunghole portion to the imprint as well.
The investigation of the office party complaints started when a clear bumprint was lifted from the copy machine.
by wallville February 23, 2011
Get the Bumprintmug.