1 definition by LepraBoy

Verb - An action that when marked by the exclamation of the word in conjunction with taking an object, immediately transfers absolute, inarguable, legal ownership from the original owner to the person using the word regardless of previous property rights.
For the joink to be valid, the joinker must fully remove the joinked object/subject (oh yes, it is doable, but only the bravest dare even attempt to pull off a subject-joink) from the joinkee. Like between swords in a Devil's Threesome, there must be NO contact between the joinkee and joinked object/subject for the joink to be valid.

"-Gods damn it!
I cherished my dane axe, but I had to forge a new one when my brother came out of nowhere and joyfully exclaimed, "JOINK!" while taking it from my belt before I could react.
Now I can't even axe him to get it back to me!"
by LepraBoy June 11, 2014
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