When you take your sock off by rolling off like a condom
Jim "whoa all the socks in your drawer look like big cotton condoms!"

Mike "Yeah there sock condoms"
by jcblm5145 March 14, 2010
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A dirty sock condom is the condom that has been in the bottom of your sock drawer since your dad gave it to you during your freshman year of high school.
"Sorry I used a dirty sock condom last night. It was all I had."
by Freddie Mercy February 23, 2014
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