Rots of ruck!

rots of ruck

offensive slang An intentional mispronunciation of "lots of luck" based on the tendency of non-native English speakers from Southeast Asia, especially Japan and China, to conflate the sounds of the letter L and the letter R. My grandfather was always fond of wishing us "rots of ruck" whenever we left his house.
See also: of, rot, ruck
Farlex Dictionary of Idioms.

Rots of ruck!

(ˈrɑtsəˈrək)
exclam. Lots of luck! (Mocking a Japanese pronunciation.) Have a good trip, and rots of ruck!
See also: of, Rot
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • rots of ruck
  • ruck
  • fattygews
  • grape
  • African
  • partay
  • blimp
  • blimp out
  • occifer
  • ossifer