enough foolishness

(that's) enough (of this) foolishness

1. Stop being silly. Enough of this foolishness—it's too late for you kids to be running around screaming.
2. I'm done with this. This usage is usually provoked by something undesired, rather than something actually foolish or silly. Enough foolishness—I'm sick of working on this project and need a break.
See also: enough, foolishness
Farlex Dictionary of Idioms.

(that's) enough (of this) foolishness

 
1. Stop this foolish behavior. Bill: Enough of this foolishness. Stop it! Sally: Sorry. Father: That's enough of this foolishness. You two stop fighting over nothing. Bob: Okay. Bill: Sorry.
2. I have had enough of this. (Does not refer to something that is actual foolishness.) Andy: Enough of this foolishness. I hate ballet. I'm leaving. Sue: Well, please leave quietly. Sally: That's enough foolishness. I'm leaving and I never want to see you again! Bob: Come on! I was only teasing.
See also: enough, foolishness
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • foolishness
  • (that's) enough (of this) foolishness
  • have taken leave of (one's) senses
  • flamdoodle
  • fuckery
  • gabber
  • gibber
  • gibber-gabber
  • jibber-jabber
  • stuff and nonsense
References in classic literature
"We have had enough foolishness," said the stranger to Malbihn.
Son Of Tarzan
"We must begin a new century with new maturity and enough foolishness to believe we can make a difference.
Gov. Pritzker gives Democrats near-record power Governor: Pritzker sworn into office
Whichever direction she takes, she says she knows her faith is a big part of her support system, and quotes one of her favorite prayers: "May God bless you with enough foolishness to believe that you really can make a difference in this world, so that you are able, with God's grace, to do what others claim cannot be done."
Lauren Lamoly
It is worth remembering the words of Dickens which followed that famous quote: "It was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity." Some seasoned observers of what is currently happening in each country would also point out that there is more than enough foolishness, and react to some of the expectations with more than a touch of incredulity.
A tale of two cities: from Shainghai to Moscow
"May God bless you with enough foolishness to believe that you can make a difference in this world, so that you can do what others claim cannot be done"
Blessing
"May God bless us with enough foolishness to believe we can make a difference in this world," Pritzker said.
The Pritzker era begins