From the episode "Into Harmony's Way" (season 12).

Am
I can't poop in strange places

(Strange places)
      Em
I can only poop in my home
        G
It's as though I'm watched by strange faces

(Strange faces)
     Am
It's why I never roam

I've left Stewie alone with strangers

(Strangers...)
   Em
To satisfy my fecal needs...
     G
I've put my whole family in danger
   Em
To poop before my anus bleeds
F          C
Home bowl, home bowl
G                    Am
You know just what I need
F          C
Home bowl, home bowl
G              Am
Poop before my anus bleeds