It was also "Like I could care less" and then the 'like' became implied.Because the expression was "I could not care less" but people got lazy in how they say it.
My pet peeves is using it's as a possessive, when it is actually a contraction of it is. It is particularly annoying when I use it correctly and autocorrect inserts an apostrophe, which it seems to do universally. It is as if autocorrect thinks there is no such word as its, just it's.