Top Definition
a demeaning term used to describe someone whose penis size would otherwise be considered miniscule
Shut up rat dick!
Hey rat dick, go suck a nut you cockgobbler.
by Lee Boy March 09, 2003

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Small and insignificant, not worthy of consideration.
Its just a 'Rat Dick' company, unlikely to accomplish anything or pose a threat.
by txtornado99 August 25, 2008

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EJ
man that guy EJ is a rat dick

shit! he is!
by anekabitezback April 11, 2017

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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