A glottal stop or “choked sound”. / The sokuon: a small form of ツ (tsu). In romanization, this is represented by doubling the following consonant. The equivalent in hiragana is っ.

someone who is only knowledgeable within the field in which they specialize; a fachidiot

専門バカ: specialist fool

mono (having only a single audio channel)

馬鹿: stupid, foolish

馬鹿: idiot, fool, silly person, dolt; jerk, insensitive person; stupidity

馬鹿: huge, very, absurd

馬鹿: enthusiast, freak

Internet of Things

Someone who has poor handwriting, especially poor knowledge of writing kanji characters, due to habitual use of Japanese computer text input methods rather than pen and paper.