Definition of muckerism in US English:

muckerism

noun

US
university slang
  • Originally: unsportsmanlike conduct. Later generally: rowdy, coarse, or unsophisticated behaviour or attitudes. In quot. 1952: prejudice against such behaviour or attitudes.

Origin

Early 20th century; earliest use found in Princeton Alumni Weekly. From mucker + -ism.

Pronunciation

muckerism

/ˈmʌk(ə)rɪz(ə)m/