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A particularly large or inconvenient erection that is quite obvious to those in the area
While I was doing the backstroke at the pool, I got the worst isenberg thinking about the lifeguard. It was like a little periscope!
by boathousesuprise May 27, 2009
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1. To be confused as a Jew

2. to have a large nose just like a Jew (stereotype)
I like her so much, but there is no way they are going to let her in the Nazi Party (dance or organization)!

I love that girl but she has an Isenberg (Jewish nose)!
by Justinboi123 February 13, 2010
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