Luckily the indeterminate article "a" means "a fucking moron" is unambiguously a denoting phrase*.
For less fortunate wordings, allow me to present part of the transcript of Mouse v. Mouse (122 Mag.Kin.3d 871)
— Plaintiff, Ms Mouse, asks the Court to grant her a divorce on the basis of the insanity of her ... yes, Ms Owl?
— Begging your pardon, Your Honor, but the Court may have misapprehended the nature of this case. My client, Minnie, was very clear in her sworn statement. If it please the Court, please refer to that document on ... page 3, line 20. When asked what was the nature of the impediment to continuation of their marriage, she said of her husband, Mickey, not "he's insane", but —and I quote– "he's fucking Goofy".
For less fortunate wordings, allow me to present part of the transcript of Mouse v. Mouse (122 Mag.Kin.3d 871)
— Plaintiff, Ms Mouse, asks the Court to grant her a divorce on the basis of the insanity of her ... yes, Ms Owl?
— Begging your pardon, Your Honor, but the Court may have misapprehended the nature of this case. My client, Minnie, was very clear in her sworn statement. If it please the Court, please refer to that document on ... page 3, line 20. When asked what was the nature of the impediment to continuation of their marriage, she said of her husband, Mickey, not "he's insane", but —and I quote– "he's fucking Goofy".
* https://www.uvm.edu/%7Elderosse/courses/lang/Russell(1905).p...