dead on my own schedule

When you make plans to do something with someone else, but when the time comes you're still asleep.

"Thanks, Karina. I really appreciate it."
"No problem. Now, go to sleep, we leave tomorrow."

You wake up, and head to Karina's room. She's still asleep.
"Karina," you say, shaking her by the shoulder.
"Huh? Wha? Huh?" she says, waking up.
"It's time to go. We're leaving today."
"Finally. I'm fucking dead on my own schedule."

getting high on his own supply

When you start to believe the hype about yourself: arrogant superiority.

That dude is acting like he all that. He's getting high on his own supply!

you got owned!

something that may be said in a video game, typically a first person shooter, when the enemy is killed by you very quickly, and barely seen onscreen.

could also be said as "ya got owned" or "you got pwned"

enemy: shows arm around corner
me: pew pew
enemy: aaaaghauagau i am dead
me: you got owned!

On your own head be it!

Idiom

used to tell someone that they will have to take full responsibility for what they plan to do

I am telling you, don't get married to her, she is a control freak but if you do then, on your own head be it!

If you want to quit a high-paying job to chase after some fantasy of being a travel writer, then on your own head be it!

You do not have enough brains to tan your own hide

An individual who is so stupid that you could be forgiven for wondering whether they have any brains in their head at all. A total idiot, an imbecile someone who you can’t imagine how they are even functioning.

'You sir, are so stupid that I suspect that you do not have enough brains to tan your own hide'

bring your own guts

Term coined by Clemson football coach Dabo Swinney to describe the mindset players should have for game-day. Clemson will give players on scholarship free tuition, but only the players themselves can bring toughness and determination to their game. BYOG means that players should play hard-nosed football with tenacity and spirit

Dabo: We give you stipends, and meals, and a place to live. We give you nice uniforms. I can’t give you guts. And I can’t give you heart. And tonight, hey, it was B.Y.O.G. Bring your own guts

Not to butter my own toast

A phrase used before self praise in order to make oneself sound more modest

"Not to butter my own toast, but my fit is lookin mega fly today"