When someone is suffering from persistent heartburn, and the only relief is to have one twin toss his salad while the other twin defecates down his throat. All while this is going on, it's not an official Dirty Lane unless he is also fucking his mom's funbags with his flaccid cock taped to a Popsicle stick.
John just went to Taco Bell and we're all out of Tums. Looks like it's time to call up his mom for a Dirty Lane session.
by clowningaround October 7, 2010
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A dirty lane change happens when you're having anal sex and then slip it into the vagina.
John pulled a dirty lane change on mary and she was pissed!
by AndrewNcls January 19, 2010
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