Lane Changer 

Is a variation of 69 that requires the male to be either standing or kneeling, he will have his arms wrapped around the female's abdomen holding her upside down, they will both be performing simultaneous acts of oral sex on each other like 69.

Landon gave Lain a Lane Changer and dropped her on her head breaking her neck.

Lane Changer by jswest2 February 13, 2010

texas lane change 

an attempt to switch from the vagina to the anus without warning.

"i had her in the dog, and i pulled a texas lane change on her - and she turned around and kicked me in the nuts."

texas lane change by gwiz September 11, 2008

illegal lane change 

Changing from vaginal intercourse to anal intercourse without the consent of the female partner.

Barb went ballistic when Ken pulled an illegal lane change last night.

illegal lane change by Topher Kersting February 14, 2006

lane-change

A quick switch from vaginal to anal penetration or vice-versa.

I surpised her with a sudden lane-change in return for snowballing me the other night.

lane-change by Napoleon Bonerhard November 15, 2006

Lane-change-remorse

When traveling via automobile in a hurry. The emotional expression of personal regret felt by a person after he or she changes lanes to improve one's ETA and the lane is now worse off.

I was stuck behind a senior citizen call pool vehicle so I changed lanes and now the blue haired lady passed me. I am suffering from lane-change-remorse.

Lane-change-remorse by Darrin Zehnpfennig February 15, 2009

Illinois Lane Change 

When someone changes over four full lanes of traffic with no warning.

Or

Cutting in between other cars at high speeds

Or

Being in the wrong lane then deciding to turn right/left at the last moment and cuts everyone off.

I just pulled an Illinois Lane Change.

Illinois Lane Change by grant6923 February 26, 2011

Massachusetts Lane Change 

In Massachusetts everyone swerves across lanes without using blinkers or even looking, therefore a Massachusett's Lane Change is when someone is going at it and decides to switch orifices (Pussy to Ass) without any forewarning to the woman, its a complete surprise.

Vinny: Yeah dude, I pulled the Massachusetts Lane Change on her last night, she freaked out.
Johnny: Did she cry?
Vinny: Yeah a little bit, mostly because she never had anal before, I told her I slipped.

Massachusetts Lane Change by Tom Sumner October 4, 2008