Top Definition
a pre-boner is when you get hard but not fully hard and you're just like, "damn".
"Babe, start sucking, I only have a pre-boner right now."
by tvlesher December 28, 2014
1 more definition
The act of acquiring an erection prior to engaging in a sexual act
Girl: "Im gonna give you the best blow job"
Guy: "Is that...Is that a Pre-Boner?"
by The Halfrican January 04, 2010

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