'Mean Penis' in L337-speak, also referring to "dickhead"--the insult.

Or, engaging the term to another who is a penis-sucking-whore.
leik0mz!!!11 u r t3h m3n0r p3n0r!!111 u suxx0rz!!
OR
leik0mg!!11 u suxx0r m4j0y m3n0r p3n0r!!111zz
by r0x0rz February 4, 2005
Get the m3n0r p3n0r mug.