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Wiktionary
jank

a. janky n. (context computing slang rare English) Problematic blocking of a software application's user interface due to slow operations.

Wikipedia
Jank (band)

Jank is an American emo band from Philadelphia, Pennsylvania.

Usage examples of "jank".

I left Jeff and the rest of the ground crew ripping out the insulation from the heli, while Janks and I walked over to the Here.

Wall and was purportedly the diary of a man named Harley Janks whom no one remembered.

When we rounded the end of the bleachers, I had a clear view of Janks Field.