When you concentrate at a hot girl to make yourself hard, to create affection towards your penis using your mind.
by Schuman Heinrick June 28, 2010
It took good cockcentration to not get a boner while watching the lesbian sex scene in Black Swan with my parents.
by Payinthefidlr April 10, 2015
by Joe Camp January 11, 2006
by Aurora Blew February 12, 2017