Top Definition
1.Another way of saying you have a boner (erection)

2.Something boner worthy, bonerific
Girl: "How's it going?
You: "Pinnacletastic now!"
Girl: "Uh, kay.."

You: "Damn, that goat is pinnacletastic!" (note, I said "you" not me)
by Trawn July 04, 2006
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