When too lines of cocaine are made side by side, and then it is snorted so that one line goes up each nostril at the same time. This person would then be on the Two Lane Highway unti the cocaine wears off.
"Dude I'm on the two lane highway and i cant get off man."
by This Guy made it up April 01, 2009
When a man is in the processing of fucking a woman and fingering her with two fingers at the same time.
"Dude, that girl Katie is so loose I slipped in the Two Lane Highway last night then bitch slapped her and spit in her face.....she loved it."
by Numero Two October 08, 2008