(transport) A collision where the front ends of two vehicles (such as ships, trains, cars, planes, etc.) hit each other, as opposed to a side-collision or rear-end collision.

Alternative spelling of print on demand

(publishing) A system of printing very small runs of a document as required, especially by using computer technology.

(colloquial) An answer indicating outright rejection or denial; no way; absolutely not.

There is nothing someone can do to evade something.

plural of one under

(rail transport, slang, Britain) A person under a train; a person hit by a train after jumping or falling in front of it.

(idiomatic, US) To be careful about what one says, especially with regard to disrespectful or profane language.

(informal, transitive) To get; to obtain; to secure. / To catch.

To betray a constituent or charge out of self-serving interests or desperation.