That’s that
phrase
It indicates that something is finished or decided and no more discussion is needed or possible.
She's made up her mind, and that's that.

Often appears as...
- they've said no and that's that
- that's that then
Usage tips
Colloquial
phrase
Used to show that you think a situation cannot be changed or improved.
I didn't get the job, and that's that.

Often appears as...
- didn't work out and that's that
- there's nothing more we can do
Usage tips
Colloquial
phrase
It indicates that something is finished or decided and no more discussion is needed or possible.
She's made up her mind, and that's that.

Often appears as...
- they've said no and that's that
- that's that then
Usage tips
Colloquial
phrase
Used to show that you think a situation cannot be changed or improved.
I didn't get the job, and that's that.

Often appears as...
- didn't work out and that's that
- there's nothing more we can do
Usage tips
Colloquial
Definition 1 of 2

Resolute Closure
Used when a person is set in their decision, expressing firm finality with no room for debate.

He announced his retirement, and that's that.
Conversation Ender
Marks the end of a discussion, typically because a decision has been reached.

We're not buying the car, and that's that.
No Alternatives
Implies no other options are available or will be considered.

This is our final offer, and that's that.
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