Parody of the name of rapper Slim Shady (Marshall Mathers) used by people who think he is simply a fake ass white boy.
''Hi my name is, Slimpenis''
by Brendan April 05, 2003
Feminem. Rap star Eminem who cannot stimulate sexual pleasure to his now ex-wife, Kimberly Mathers through coitus.
Slim Penis has no problem inserting his penis into Dr. Gay's anus during a steamy night encounter.
by Femi-killah October 02, 2003

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