down with

phrase

1

—used to say that one does not like something and wants it to stop or fail

Down with racism!

Down with the government!

2

US slang

—used to say that one understands or approves of something

I told them I wasn't down with lying to people.

Yeah, I'm down with that.

3

: affected by (an illness)

She has been down with the flu for a week.