List: colloquial

popular  dated term  noun  noun (generic)  colloquial 

• patent
• one's specialty (party piece, etc.)

popular  gikun or jukujikun  noun  noun (generic)  colloquial 

• dusk, twilight
• twilight years
• melancholia, melancholic nostalgia

popular  music  noun  noun (generic)  colloquial 

• interval, step
• pitch, key

popular  obsolete kanji  rarely used kanji form  noun  noun (generic)  usually written using kana alone  colloquial 

• paper lantern, Chinese lantern, Japanese lantern
• snot bubble

popular  noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb  colloquial  transitive verb 

• cooking for oneself, cooking one's own food, doing one's own cooking, making food oneself, self-catering
• scanning a book or magazine to create an ebook by oneself

popular  rarely used kanji form  noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb  colloquial 

• honorable death, death without surrender, honorable defeat
• trying but being utterly beaten, being completely rejected when professing one's love

popular  anatomy  noun  noun (generic)  colloquial 

• cecum, caecum, blind gut
• (vermiform) appendix
• appendicitis

popular  colloquial  godan verb  godan verb (archaic)  verb (generic)  intransitive verb 

• to get on, to climb on

popular  JLPT N2  noun  noun (generic)  colloquial 

• seat, bench
• temporary job while looking for a better job or until one marries

popular  JLPT N3  usually written using kana alone  noun  noun (generic)  noun (suffix)  colloquial  archaic  'ku' adjective (archaic)  adjective (generic) 

• without
• unacceptable, not alright, unsatisfactory
• nonexistent