Japanese edit

For pronunciation and definitions of たらう – see the following entries.
太郎たろう
[proper noun] [from at least the early 900s] a male given name (particularly for an eldest son)
[proper noun] [from late 1100s] (euphemistic, by extension) the first, the biggest, the tallest, the most, the best
[noun] (Internet slang) generic protagonist of isekai-kei and social-network games
[noun] [from 1797] (derogatory, slang) a fool, an idiot
[noun] [from 1929] (derogatory, slang, criminal jargon) a country bumpkin, a mark (as a targeted victim for theft or other crime)
[suffix] suffixing element in male given names
(This term, たらう, is a historical kana spelling of the above term.)

(The following entry is uncreated: 田老.)