Definition

Little Minor Chuckle—that subtle laugh-smirk combo you emit when something's mildly amusing, awkwardly funny, or you're trying not to fully crack up in a serious situation. The audio equivalent of a barely-suppressed grin.

Example Usage

When my boss asked if I'd finished the report, I just gave him an LMC and said it was almost done.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=LMC&defid=15841466)