Semi-rection

When a man sees some-one hot and gets a half erection
When your penis grows bigger but it doesnt go upwards like a normal erection and is therefore a half erection giving the name semi-rection

Dude 1: Man that girls hot!
Dude 2: Shes ayt ive only got a Semi-rection

Dave: Man my balls are so small so im going to try to get a Semi-rection to make it look bigger.

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