tardive dyskinesia

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A chronic disorder of the nervous system characterized by involuntary jerky movements of the face, tongue, jaws, trunk, and limbs, usually developing as a late side effect of prolonged treatment with antipsychotic drugs.

Wiktionary

1. n. involuntary, repetitive movements as a side effect of dopamine antagonists.

WordNet 3.0

1. n. involuntary rolling of the tongue and twitching of the face or trunk or limbs; often occurs in patients with Parkinsonism who are treated with phenothiazine