When agreeing with someone without really agreeing in order to stop further discussion. Mostly because it just isn't worth your time to go on or you are just not interested.
A word used by store/office managers, often after giving instructions, to indicate that there shall be no opposition to the instruction, nor any argument made. Sometimes followed up with a "Great" or "Thanks" as a usually unsuccessful attempt to make the employee feel like less of a tool.
"While you finish my reports for me, I'm gonna go pick up a hooker for my lunch break m'kay? Thanks."