What does "muschi" mean in German?

I was in Germany as an exchange student for a month in the summer and some guys kept on asking me what my muschi is like. It was really kind of awkward because I had and still have no idea what it is, so I just kind of said that it was great. They just laughed and talked about what I said for like half an hour,... show more I was in Germany as an exchange student for a month in the summer and some guys kept on asking me what my muschi is like. It was really kind of awkward because I had and still have no idea what it is, so I just kind of said that it was great. They just laughed and talked about what I said for like half an hour, but I couldn't really understand what they were saying because my German isin't that good yet.What does it mean anyway?
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