[いとくず, itokuzu] (n) (See 綿ぼこり) lint (as in a clothes dryer or a pocket); waste thread; fibers, such as might wrap around the gears in small mechanisms and cause them to jam; fluff
[だつオタク, datsu otaku] (n) (See オタク) ex-nerd; one who has given up geeky or nerdy hobbies; one who has given up stereotypically geeky dress, mannerisms, etc.
[れきじょ, rekijo] (n) (See 戦国時代) young woman strongly interested in pre-Edo history; young woman making use of speech and mannerisms of pre-industrial Japan; female history buff