(idiomatic) A quick, intense course of learning, especially one which is informal or hurried.

Alternative spelling of crash landing

Alternative spelling of crash land

To land an aircraft or spacecraft in an emergency, either in an inappropriate place or under dangerous conditions; usually results in damage to the craft and the possibility of loss of life.

The landing of an aircraft or spacecraft in an emergency, either in an inappropriate place or under dangerous circumstances, usually with damage to the aircraft.

Any place used for temporary lodging, especially without payment or permission. / (aviation) A place of temporary lodging for airline flight crews.

(very rare) Alternative form of gatecrash

(informal) A place where one may crash (stay informally).

plural of crash test

A test of crashworthiness, usually involving the controlled crashing of a vehicle with dummies in place of human passengers.