A general idea or understanding of something: the concept of inertia; the concept of free will. See Synonyms at idea. 2. A plan or original idea: The original concept was for a building with 12 floors. 3. A unifying idea or theme, especially for a product or service: a new restaurant concept.
Upper lip twitching is caused by a sudden involuntary contraction of the muscle or muscle fibers in the lips or as a result of direct stimulation or injury, according to Health Hype. Lip twitches also result from tics, spasms and tremors. They are usually benign, but sometimes indicate an underlying condition.
Similarly, if the right side of your lip twitches, something good is going to happen that day or if your left side of the lip twitches, something bad is going to happen that day. [3,4] Causes for Upper Lip Twitching. There are multiple causes for upper lip twitching. Some of the commonest causes are: Severe anxiety or stress; Excessive fatigue