Definition of trougher:
(n) :
(chiefly British) A greedy person.
(n) :
(by extension) (chiefly British) A careerist politician, especially one representing the Scottish National Party.
(n) :
Alternative spelling of troffer. [A rectangular, trough-shaped light fixture, typically for mounting in or on a ceiling to light the area below, and usually containing two or three fluorescent bulbs.]