E.g. A person who just had an operation/surgery e.g appendix, in the hospital was visited by friends. The friends decided to crack a joke to the patient friend to make him/her feel better. However in doing so, the patient friend laughed out loud at the joke such that he/she became in pain due to movements of the stomach muscles affecting the recent surgery on the body.
Usage: James lolip when we told him the other day how our boss wanted to surprise him with a special gift when we visited him at the hospital after his appendix surgery.