changing lanes

The act of pulling ones penis out of a vagina then immediatly inserting it into the anus or vice versa. This process is then repeated over and over again.

Mel couldn't walk for 2 days after mike had frequently been changing lanes on her

changing lanes by dudebra April 8, 2008

Changing lanes without signaling 

It's when a man goes from the vagina to the anus in one quick motion without warning his partner.

I was changing lanes without signaling on Renee in the shower and she went deaf for a minute.

Changing lanes without signaling by intelinside August 5, 2010

changing lanes without using your signal  

When you go from vaginal sex to anal sex without warning the girl. Must be done in a quick fashion.

Jake : Hey did you end up changing lanes without using your signal on that chick last nite?

Steve : yes sir. she said she didnt like anal but she got it anyways.

changing lanes without using your signal by switchbladejake October 11, 2008