1 definition by MEMAW
A abreveation of "just kidding". Origanated from AOL instant messenger (AIM). Also stated as JK'ing.
person 1:I heard Canada was anexed into the U.S.
person 2:That is the most retarted thing i have ever heard
person 1:Oh, i was JK.
OR
person 1:Oh, i was JK'ing
person 2:That is the most retarted thing i have ever heard
person 1:Oh, i was JK.
OR
person 1:Oh, i was JK'ing
by MEMAW March 25, 2006