トナラー

noun

person who sits/stands next to a stranger when other spaces are free

Jocular slang derived from 隣 (となり, 'next to') + -er. Used for someone who parks, sits, or stands right next to you in an otherwise empty area, often with mild annoyance.

See also: となり

• 駐ちゅう車しゃ場じょうがガラガラなのに、わざわざ隣となりに停とめるトナラーがいる。

  Even though the parking lot is nearly empty, there's always a tonarā who parks right next to you.

• 映えい画が館かんで席せきがたくさん空あいているのに、隣となりに座すわるトナラーに遭そう遇ぐうした。

  I encountered a tonarā at the cinema who sat next to me even though many seats were available.