IOC definition. This page explains what the acronym IOC means. The definition, example, and related terms listed above have been written and compiled by the Slangit team. We are constantly updating our database with new slang terms, acronyms, and abbreviations. If you would like to suggest a term or an update to an exisiting one, please let us know!
If a spasm is forcefully sustained and doesnât relax, then it ripens into a cramp. A charlie (charley) horse is a common term many use to indicate they either have a muscle spasm or cramp, typically in a thigh or leg muscle. This charlie of a horse is very often caused by dehydration and/or lack of potassium. A muscle spasm can occur in any muscle and you may be able to see or feel the hardened muscle, like a knot. Sometimes, muscle spasms will occur with such force that theyâll leave a bruise behind.
It often occurs in the legs. A muscle cramp is also called a charley horse. Nighttime leg cramps are usually sudden spasms, or tightening, of muscles in the calf. The muscle cramps can sometimes happen in the thigh or the foot. They often occur just as you are falling asleep or waking up. The cause of muscle cramps isn't always known.