acknowledge the corn
To admit to or acknowledge one's fault, shortcoming, mistake, crime, or naiveté. When they arrested me, I decided I might as well acknowledge the corn and confess to stealing the car. Especially since I was still driving it.
pee in (someone's) Corn Flakes
rude slang To really upset, irritate, or disappoint someone. Sorry to pee in your Corn Flakes, but you won't get any credits for the class unless you attend every single lecture. A: "Watch out, the boss is in a foul mood today." B: "Wow, I wonder who peed in his Corn Flakes?"
piss in (someone's) Corn Flakes
rude slang To really upset, irritate, or disappoint someone. Sorry to piss in your Corn Flakes, but you won't get any credits for the class unless you attend every single lecture. A: "Watch out, the boss is in a foul mood today." B: "Wow, I wonder who pissed in his Corn Flakes?"