Yes eggcorns. See forth paragraph in the link to see how the word was coined. It's a "spell-as-you-speak error". The eggcorn I find more and more prevalent and less and less tolerable to my sensiblities is: the erroneous "supposably" for the proper "supposedly" My mum has a friend who says "but the woman has very, very, very close veins". I swear it's true. I've heard it.