Bathroom. Occasionally, the shitatorium. At work we all call it the library. 
Bathroom in most circumstances, toilet for less classy company.
If I want to mention that I’m going out without saying something vulgar like “bathroom” or “toilet” or “I have to go pee” I say “powder room.” It always gets a chuckle out of people and technically speaking means a very classy old-world type room to go to.
The head.
It’s funny how we have a different term depending on the company we’re in.
I like to call it something I think will amuse my company. If I’m with my friends in a divey place I like to say that I’m retiring for a spell in the Gentlemen’s Lounge or the powder room.
If I’m in polite company or in a foo foo place I like to say I have to hit the head or I’m off to find the pisser.
But, then again, I’m weird.
The Jakes.
Nobody else use/heard the common pinoy term CR? ( Comfort Room)
Yard, Lawn, outside or ‘Groover’
Okay.
I don’t know that there’s any more “prissiness” behind calling the place you take a shit the “bathroom” over calling it the restroom, washroom, water closet, loo, head, john, toilet or anything else. I was merely saying when someone in the US, far and wide, are looking for a place to piss or shit, “bathroom” is the most common parlance. :shrug:
Prissy? Seriously? And you lived here?
And, yes, “potty” is childish here (but can be used ironically).
A potty, in the UK, is first and foremost the training device for children being potty-trained - https://www.google.co.uk/search?q=potty&hl=en&client=safari&source=lnms&tbm=isch&sa=X&ei=boU0UfSmE6aW0QXemIGQCQ&ved=0CAkQ_AUoAQ&biw=1024&bih=644
Same in the US, IME.
Commode? I know a few older folks who use the word.
Where I am, “commode” refers to the actual toilet fixture, never the room.
Either “casa de banho” or “banheiro.” Some older structures have WC on the doors.
At work it’s “I need to use the Whizzer”…we are an odd bunch, though! LOL
Another vote for “loo”, which I’d believed was short for “gardyloo”.
The Shititorium
At home, it’s “bathroom”.
In public, I may ask for directions to the bathroom, or to the restroom. Not sure why I do that, except perhaps that so many signs list them as restrooms (e.g. on mall maps).
The loo or toilet if in a house. The loos or toilets if in a public place like a shopping centre.
On signage yes, but it’s not the usual way to refer to them.
the head
Not if there’s a drain, I won’t be! It’s all pipes! ![]()