1
general::
Phrase(s): *(all) tuckered out
Rur. tired out; worn out. (*Typically: be ~; get ~.) • Poor John worked so hard that he’s all tuckered out. • Look at that little baby sleeping. She’s really tuckered out.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Exhausted, very tired, as in I was all tuckered out after that game. The precise origin of this usage is not known. [Colloquial; 1820s]
American Heritage Idioms