that's on period
Used at the end of a statement to declare that it is final and there is no room for…Used at the end of a statement to declare that it is final and there is no room for discussion.
Meaning
1 senses(slang)Used at the end of a statement to declare that it is final and there is no room for discussion.
Pineapple belongs on pizza, and that's on period!
Dictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.