1 definition by Ben Compton

1
R B
an Erection that one gets for no reason, "Random Boner"
what the fuck!! i was writing on the chalkboard in class and i got an "R B".
by Ben Compton October 18, 2007
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• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request