An erected penis that forms a sharp angle. Usually a 90 to 60 degree angle.
How can a guy have sex with a boomerang boner like that? Unless he does it sideways.
by Al-Pal113 February 5, 2010
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When other people near you have a erection and you het an erection from it and so on
Bro there was a huge boner boomerang last night
by The neatest neacheous March 25, 2017
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