megabuck

[ meg-uh-buhk ]
/ ˈmɛg əˌbʌk /

noun Informal.

one million dollars.
megabucks, very large sums of money.

Origin of megabuck

First recorded in 1945–50; mega- + buck1

British Dictionary definitions for megabucks

megabuck
/ (ˈmɛɡəˌbʌk) /

noun

US and Canadian slang
  1. a million dollars
  2. (as modifier)a megabuck movie