When somebody butchers a word (that happens to be, remarkably, phonetically spelled) so much it sounds completely out of context and has been so altered from its original state that it is now incomprehensible.
Usually performed in a very American accent when reffering to foreign names/words, etc.
Person 1: How hard is it to pronounce "escargot"? Honestly...
Person 2: IKR! She just pulled a SERIOUS nomjee.