noun. Used to describe a person. A word that combines the term nimrod and the word hemroid, it is used to describe someone who is exceptionally annoying as well as uncommonly stupid. The most simple explaination when a person asks what the term you just used means would be "You are as dumb as a nimrod and as annoying as a hemroid...therefor you are a nimroid.
My girlfiend's little brother won't ever leave us alone long enough for me to slam it in her ass. He just keeps bargin in everytime I get ready to spit on her and throw it in. That kid is such a fucking nimroid.
Your dad is a nimroid. Your mother is a nimroid. I should have known...they would make a nimroid bitch like you.