Yawn Boner

Sometimes called "Yoner", is when one gets an erection from excessive yawning. They will often come about with no warning and are usually harder than a normal erection. They will usually happen in the morning, often during class or at work.

Guy 1: Woah dude are you getting off to our math lesson?
Guy 2: No dude I've got a massive yawn boner right
Guy 1: Oh damn I hate yoners

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