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A super duper raging boner (erection) hard enough to break through concrete.
I can see that chick's pussy from under here! I have such a nerbo.
by I like funbags March 12, 2008
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Aug 11 Word of the Day
You can tell by the way she walks, she got that WAP.

You can look at her face and tell she ain't got that WAP.
by Black Don August 06, 2020
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Dude, my dick is lobsided and when I get a boner, it's a NERBO
by Giraffesarefluffy May 27, 2017
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