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The way of putting an ice cream cone on your dick and use it as a condom
Dude some guy at school used the old coner boner on his girlfriend.

lol thats funny man
by timmmmah March 04, 2012
The act of having a massive erection for Conan O'Brien.
My coner boner was so huge last night when Conan stripped nude and started eating jelly beans!
by ConeyIsland69 February 27, 2013