A mum woke her two daughters and told them to put their clothes on and come down to breakfast. A little later the older child came down and said 'I've put all my clothes on, mummy, but Beccy's only put one clo on.'
('Clothes' is usually pronounced 'close'.)
I have just had these hits:
I ain't done it - 65,700,00
You ain't done it - 1,340,000
He ain't done it - 13, 600,00
She ain't done it - 9,610,00
We ain't done it, 13,700,00
They ain't done it - 8,240,000
Despite these apparently impressive figures, these expressions are incorrect in all standard versions of English.
If you tell me that "Tommy, pick up your garment!" is natural in your idiolect, then I must accept this. It is unnatural in my idiolect and, I am pretty sure, in most varieties of English.
If you want to start a new thread asking whether 'garment' is a common word in English, I'll agree with you.
If you want to start a thread asking the difference between i) whether 'garment is a common word, and ii) whether 'garment' is commonly used for a single item of clothing, I can explain that again too.
If you want to know how X can get 100,000,000 Google hits and yet not be used commonly to mean Y, I can also explain that.