Where two people pose for a picture to imitate the Lewis and ClarkHistoric Trail signs where one person is pointing while the other looks on. Usually done at a point along their historic trail.
Form of coprophilia practiced by lesbians in the United Kingdom. One partner defecates into the other's vagina, which is held open, often with the aid of a speculum. They then proceed to suck their feces back out of their partner's vagina and ingest it.
To romance a girl with lots of attention and effort so that the girl will then leave her boyfriend so that you can have as much toe and bottom sex as you want
A game played by two people that involves the 'exploration' of each others bodies. Game is usually played by using hands, and on occasion, tongues but once you cross into the danger zone, its no longer lewis and clarking, then its officially a hook-up.
Girl one: Omgshhhh last night was amazing!!!
Friend: So did you guys hook up??
Girl one: No, but there was definitely some lewis and clarking going on ;D
When an upper-classman dates a younger female at a school. "Clarkers" will usually have a string of failed relationships that only lasted for a few weeks. Those who clark usually do so because they are infamous around school and no girls in their grade want to date them, it is because of this the clarker usually takes advantage of the newer girl's ignorance pertaining to who the clarker really is.
The bigger the age difference between the clarker and the victim, the more pathetic it becomes (ie a junior dating a freshman is worse than a sophmore dating a freshman)
Someone is not clarking if they have been dating the younger girl for more than 6 months, or if they have only clarked once.
Person 1: "Dude Josh was picking his nose in class again."
Person 2: "The guy who shit himself in math last year?"
Person 1: "Yeah! I heard he has another freshman girlfriend this year."
Person 2: "Probably because she doesn't know how gross he is."
Person 1: "Poor girl doesn't even realize she's a victim of clarking."
Person 2: "Wait wasn't he with Taleene last week?"