When two people go out as friends, but one or both parties harbour feelings for the other. Such meetings are used to gauge one's feelings for the other, and usually precede the first date.

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

Not quite a date, where you go out with a person you might be interested in dating and they're totally interested (or vice versa), that you've previously met during an activity where you maybe weren't yourself (e.g. a waitress from a bar where you were totally hammered). A pre-date will normally occur at a location of one of the parties choice (generally the less interested one) where there are other people they know close by, in case the other person turns out to be a psycho (e.g. a serial rapist or axe murderer). First date activities can still happen on a pre-date (e.g. flirting, makeout, OTPHJ, etc.), but the date definitely does not count in any running total and will leave at least one of the parties clueless and looking forward to/nervous for the actual first date.

The initial informational-interview type meeting with someone met through an online dating service.

Typically involves a drink, right after work, during the week. Sometimes this psuedo-date can carry over into dinner if both parties are interested.

Rhymes with rebate.

The act of looking up prospective dates on Facebook or some other social networking site for the sole purpose of masturbating while ogling his or her picture(s). A predater is one who predates.

When person A takes a person of interest (person B) out to lunch but does not pay. Person B does not know it is a pre-date and is for person A to evaluate whether they would like to go on a date with the person. Each person pays for their own meal.