You do me and I'll owe you one.

A term used to reference cannabis/marijuana/weed.

A sexual(often oral) favor performed by someone without receiving the favor in return.

69

Oral sex on a snowman

Gamespot's original score for Shenmue, which later became an in-joke on forums such as Gaming-Age.

The act in which a male proposes a false agreement with a female, in which the female will perform oral sex on the male and the male promises to return the favour, owing her one in the future, thus the name "68". The male then, subsequently, does not return the favour, thus a scam on the female.

When a person attempts to engage in the act known as a 69 with a frozen being made of snow (i.e. a snowman). Fair warning to persons of whom may be intrigued by this activity, it is very important to wear protection while 68’ing.