Top Definition
A sock used predominantly by adolescent males to masturbate into.
Ralph: So this morning, I was in such a rush that I grabbed any two socks I could find and put them on. To my dismay, I noticed that my left foot was covered in something wet...turns out I had accidentally grabbed my Ratsock.

John: That sucks dude.
by MagyarDan October 08, 2009
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