ROCL is an internet acronym for Rolling On Ceiling Laughing, and like all things internet it has adapted to nerd culture and has taken on new real-life use, though usually in a satirical way.

Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.

An acronym used by the Inception fandom that stands for "rolling on carpet laughing."
This term refers to one of the main characters of the movie, Saito, and his line about the carpet being wrong.

literally meaning of "rolling on chair laughing". a play off of "rofl" when someone is on the computer and is laughing really hard while in a chair

Relaxin On Chair Laughing

Abbreviation of "roll on the cotch laughing".
Most common when a group of people are in a cotchment, having a lol, possibly intoxicated, and a member makes a joke, causing all members of the group to fall back, collapsing around the cotch, causing a mass ROCL.

"Rolling outta the Car Laughing"