A tendency or attempt to have the last word in any argument, decision, or endeavor.

plural of last hurrah

(idiomatic, often preceded by the and followed by in) The finest, highest, or ultimate representative of some class of objects.

plural of last word

The final remarks uttered by a person before death.

(idiomatic) at last

plural of last post

(idiomatic) A final act (by a politician, etc.) or performance (by an actor, etc.) that marks the end of a career.

The last gasp or breath a person takes before death. / (by extension) The point of death, or the last period of one's life. / (figuratively) A last-gasp moment, attempt, etc.

(Islam) an epithet of Muhammad