A combo of the two most despicable political parties (according to the U.S.) Communists and Nazis. As the mixture of these two beliefs would basically be a moderate, the word is used solely as an insult.
A gentleman who constantly withholds orgasms from their partner. They may be greedy, or just bad in the sack. There has not been enough research in the field to determine for sure.
"I can't believe I dated that cummanazi for 5 months! My new vibrator is a much better investment."
When having sex the condom breaks when you are about to bust but you do not want to stop so you send it and bust anyway, mentally preparing yourself for the repercussions.
Damn Kyle you shouldn't have Cumakazied your girl because now she's pregnant.
The point in which an English major or swamped college student's brain shuts down grammatically. Which usually ends up with a commabukkake of the sorts.
Ah man I commakaze-d that paper, thank god for Word.