The given symptoms are most likely related to <u>Tardive dyskinesia.</u>
Explanation:
<u>Tardive dyskinesia </u>is a mental disorder which results in <u>rapid, repetitive </u>and <u>involuntary</u> body movements such as smacking lips, sticking out tongue, lateral movement of jaw, lip puckering and grimacing.
The long-term use of neuroleptic medications such as antipsychotics and metoclopramide, can cause Tardive dyskinesia.