The point where ur penis is kinda hard and ur excited but still have ur pants on. You might be dancing with some fine slut and she'll feel a little bump comin through and grind that shit like she's fuckin got an itch.
Guy 1: Shit man, i got a semi erect penis when i was dancing with her.
Guy 2: Did she grind that shit like there was no tomorrow?
Guy 1: Nah she only likes nello and his big bulge.
by dew dogg May 22, 2006
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When your erection is long but soft, hence a semi-erect penis.
Joe's got a semi-erect penis in his pants.
by Ohh. Naggers, of course. April 24, 2024
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