an object or line that is ;

1) on its side
2) on its back

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.

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

The desire to eliminate all things vertical and to alway be laying down, horizontally.

to have sex. "horizontal" as in lying down, having sex, but doesn't necessarily mean having sex when lying down.

Sleeping or lying down

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