n. a movement disorder present in patients with kinesthetic problems and those using antipsychotic drugs. It manifests as involuntary lingual movements like protruding the tongue and labial movements such as pursing the mouth or lips. Also called buccal-lingual masticatory syndrome. See oral-lingual dyskinesia- also tardive dyskinesia.
BUCCOLINGUAL MASTICATORY SYNDROME (BLM BLMS): "Due to involuntary lingual and labial movements, the Buccolingual Masticatory Syndrome sets the face into a grimace."