(attributive) doing nothing, not taking any action.

(idiomatic) To abuse an illegal drug or drugs, especially as a result of chemical addiction.

(informal) To work; to be successful; to solve a problem; to be sufficient or adequate to fulfill a purpose.

(rare) Alternative spelling of doodad

(intransitive, idiomatic, informal) To survive, get by (with), or use whatever is available (due to lack of resources). / (transitive, informal) To put into action.

(transitive, idiomatic, informal) To abolish; to put an end to; to eliminate. / (transitive, idiomatic, informal, euphemistic) To have someone killed.

Alternative form of how-d'ye-do

Rich, prosperous, financially stable and comfortable.

Initialism of Microsoft Disk Operating System, an operating system for IBM-compatible personal computers in the 1980s and 1990s, eventually succeeded by standalone versions of Microsoft Windows.

Alternative spelling of whoop-de-doo