Definition of acker in English:

acker

(also akka, akker)

noun

Services' Slang, slang
  • 1historical
    A piastre. historical in later use.

  • 2Generally Generally. Usually in plural Coins, banknotes, cash; money.

Origin

1930s; earliest use found in Eric Partridge (1894–1979), lexicographer and etymologist. Origin unknown.

Pronunciation:

acker

/ˈakə/