To have a semi erection.
Jae: "Ahh man, I just saw a couple a fat chicks and I only got a bonerang"
by Vkung June 11, 2009
The natural bend of a penis which resembles a boomerang.
Bills Bonerang is so impressive that he fucked that Asian chick Sally's sideways pussy in the most normal way possible.
by Thefuckersattheendofthetable May 06, 2015