Horizontal

[Couch Potatoe]

to have sex. horizontal as in lying down, having sex, but doesnt necessarily mean having sex when lying down.

[Mark Zuckerberg]

Sleeping or lying down

[Rihanna]

Usually occurs during a bout of food-poisoning or a night on the beers which can lead to severe pains and abnormalities relating to excretion. Upon going to the toilet for a dump, rather than fall vertically from your backside it will spray, or release horizontally. Called doing a horizontal.

[Sarah]

an object or line that is ;

1. on its side
2. on its back

[Tanya Shivari]

to be passed out...usually frum drinking but jus plain asleep can qualify also

[Becky]

An insult, meaning extremely boring, almost to the degree of being asleep, like youre talking with a person that is comatose.

[Kit]

Parallel to the plane of the horizon; at right angles to the vertical.

[Luis Fok]

The state assumed by some people for up to [15-20] hours a day. It is the opposite of being [vertical] and consists of sleeping, laying down, general inactivity and lack of [motivation] to do anything.