2 definitions by agentmiket013

Top Definition
the inverted erection of a penis, usually caused by fear or anxiety
dude did you see 2 girls 1 cup?

yeah, it gave me a negaboner
by agentmiket013 July 24, 2009
a banana held like a knife in a stabbing fashion meant to scare women in showers
Did you see that Puddle Of Mudd music video?

No, why?

This one dude scared this chick in the shower with a murnana!
by agentmiket013 July 14, 2009
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