My Google home accepts being called a variety of things that aren't Google, possibly in order to accept different accents or slurring, possibly just because it's not very strict with exact sounds being used. I imagine this is actually a good thing if you're half asleep talking into the pillow, have an uncommon accent, etc.

- googoo - googah - guhguh - gulgul - doodle - doodoo - booboo - booble - ok gool (but not hey gool)