CQTS=Chuckling Quietly To Self. Most texts do not warrant a response of LOL, being either it wasn't funny or it's not as funny as it seems. CQTS, on the other hand, is a more accurate text, being if a text is funny, the recipeint would merely chuckle, or simply smile.
Ashley- How was work babe?
Chad- Long. I'm so exhausted I could sleep for a century! LOL
Ashley- CQTS...
Chuckling Softly To My Self. Generally used as a response to a humerous situation or communication via e-mail or instant messaging. Used especially in the office setting where LOL (Laughing out loud) would rarely be the actual or appropriate response.
A co-worker hears another co worker say something innocently funny like "do do" (doo doo) or "to to" (tutu) on the phone with a customer and shoots you a message saying "He just said doo doo." The appropriate response and reply could be "CSTMS"
"cqts" means "chuckles quietly to self". It is similar to "lol" but not everyone uses "lol" accordingly because people don't necessarilylaugh out loud all the time. So the more accurate saying would be "cqts" in a conversation.