1. Last, final, ultimate refer to what comes as an ending. That which is last comes or stands after all others in a stated series or succession; last may refer to objects or activities: a seat in the last row; the last game. That which is final comes at the end, or serves to end or terminate, admitting of nothing further; final is rarely used of objects: to make a final attempt. That which is ultimate (literally, most remote) is the last that can be reached, as in progression or regression, experience, or a course of investigation: ultimate truths.

Did you mean stick to one's last?