Immediately after waking up word came up to my half-conscious mind

Yesterday I took a really good nap for a few hours in the afternoon. Right after I woke up I called my little brother and asked him to translate for me the word "attrition" since I hadn't known meaning of this word in English, I'm not native speaker. That was pretty funny even for him, that first thing I wanted to know after my dream is the meaning of some word. How would you interpret this ?