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A Taboo Boner. When one of your family members or relatives give you an erection. Tends to happen when very horny, and/or family member wears very slutty clothes.
"So i walked in on my sister while she was changing, and i got a Tabooner."
"When i woke up in the morning and saw my dad hanging out in the nude, i got a Tabooner and we ended up having rough sex."
by RocketPenguin February 27, 2014
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