Refering to the buthole and how if your gayyou would have sex through the buthole, going in. And the crap comin the other way would be out. Thus making it go two ways, a 2 way street. Straight people's butholes would be considered one way streets, because stuffs only goin out.
Teacher: Alright boys, im here to talk to you about homosexuality, most of your butholes are 1 way streets, but some may be 2 way streets.
MIcheal were sorry but whoever thought morse code was finished was wrong cause you sister loved it when jaryd and cam showed her the 2 way morse code tap