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1.
a sports sock that is placed over the males erect phalice so not to spray his body with sticky white love piss and cut down on cleaning time. It helps as an extra time saver when having a danger wank!
mum: why is this sock so stiff billy!
billy: (embarrased) it's my monkey sock!
by mike March 19, 2004
 
2.
Socks that have huge holes in the front so that the front of your feet look like monkey feet.
Guy #1: Why do your socks have huge holes in the front?

Guy #2: Because they're monkey socks. You have to be a BAMF to wear them.
by JDubz526 February 06, 2011