What is Boner Hug?
1.
Giving a person a hug while sporting a boner. It's a subtle way of letting a girl know that you've got a crush on her.
Gabriel gave Kelly a boner hug.
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2.
When one flips his boner up into his waistband so that it hugs your belly button.
(As Made Famous By Superbad)
Billy suddenly heard his sister coming in the room so he gave himself a boner hug.
See