Wiktionary
bottom liner
n. A person who is most concerned with the bottom line.
Usage examples of "bottom liner".
That it probably was 'grass' was made almost certain in my mind by two things: two little packets of cigarette papers under the bottom liner of another drawer, and a lack of any tobacco of any sort, loose or in cigarettes.
He was a stone-hard pragmatist, a bottom liner, which was why he and his friends used the mat-trans units.