The opposite of a person you want to have sex with. Someone who is literally the opposite of all the things you find attractive physically. You would never bone this person, even if paid a large sum of money.
Iggy Pop, a gross wrinkly tan old dude with long greasy blonde hair, is my personal negabone.
by monkeytits222 January 28, 2019
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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 25, 2009
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