ya-yoinkis Share definition Flag When you're out of things to say but need to say something so you chant ya-yoinkis, either as a chant or just a stand alone sentence Ya-yoinkis uh-uh-uh yeah, ya-yoinkis uh-uh-uh-uh... know what I mean? ya-yoinkis by Kaiser Pepe :^) June 4, 2021 Get the ya-yoinkis mug.