[HEADCANON #1]

Jeff is heavily believed to be Schizophrenic amongst the other Pastas, considering he often blames the "voice in his head" as the reason he kills

[HEADCANON #2]

Jeff absolutely hates foods that are burnt or crispy
Even crispy bacon

[HEADCANON #3]

Jeff knows of Tims mental illness (Schizophrenia) because he was put into the same psychiatric ward as Tim and even had group therapy with him

[HEADCANON #4]

Jeff never ties his shoes and always tucks in his laces
Though this leads to a lot of complications when his victims decide to run

[HEADCANON #5]

Jeff went as Elsa for Halloween two years in a row
He even had enough hair to do her braid