Correct grammatical usage of 'already'

Can we use this type of formation?

Stop bluffing. There's no need to hide it. Tell me already.

Can already be used in this way?

That use of already is not only grammatical, but idiomatic—at least in US English.

From Merriam-Webster's definition of already:

2 —used as an intensive
// All right already.
// Enough already!

From Lexico (Oxford):

2 North American informal
Used after a word or phrase to express impatience.

‘just stop already, no one feels sorry for you’
‘We'll start with a plea for this year to just finish already.’
‘Nobody wanted to tell him to just go home already.’
‘If you have a point in saying this, just tell me already.’
‘He needs to just retire already.’
‘I thought this was fine; let's just hurry up already.’