NIMiot Share definition Flag A combination of the acronym for North Iowa Mugshots (NIM) and the word idiot. Used by commenters in reference to the person posted on NIM. "Quit being a NIMiot and breaking the laws." "Wasn't this NIMiot just on here?" NIMiot by Missy Anne February 6, 2013 0 0 Get merch Get the NIMiot mug. Buy Now — $32.95 See more merch