Stuff (one's) head with (something) verb phrase
To fill one's brain with something, or cause one to believe something
Films sometimes stuff people's heads with unrealistic romantic stories.
I'm afraid that such games would stuff his head with violence.
To decide to believe someone‘s saying although they may not tell the truth
1. If you hang your hat on something, you depend or reply on it.
2. If you hang your hat on something, you believe or trust it.
If you take something as gospel, you definitely believe it without without any hesitation.
1. The act of keeping current customers
2. Used to indicate things you want to keep
The verb "stuff" should be conjugated according to its tense.
Someone who has a strong personality
I know Josh could deal with this problem because he's made of sterner stuff.