A non-intentional way of shortening "just kidding". It is usually said impulsively and annoys the one saying it, causing him or her to sometimes get very frustrated and end up saying it even more.

also pronounced as "juskuh" "jskd" "jsskih" etc.

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.