colloquially russian

• оти́т

  otitus (colloquially: ear infection)

• хрущевский

  Khrushchev-era, Khrushchevian, of Khrushchev, (colloquially for buildings) Khrushchevka-style

• зингерма́н

  Singer machine repairman, Singer dealer, (colloquially) Singer-man

Examples

• Э́ту фра́зу нужно испо́льзовать только в неформальном обще́нии, в официа́льной обстано́вке - никогда.

  This phrase should only be used colloquially, never in a formal setting.