A person who works processing marijuana. Plantation owners in california hire people each fall in order to pull and cut all the excess leaf off of the plant to prepare it for sale. A good trimmer may bounce from plantation to plantation earning a few thousand dollars in a few weeks.
I had to fire one of my trimmers because i cought her stealing some buds.
A person who refines political views to accommodate the prevailing winds; particularly, one who contrives self-serving excuses for political views now generally recognized to have been stupid.
In journalism, the current handwringer-in-chief is the New Yorker writer George Packer, whose book *The Assassins' Gate* has met with high praise from ... a subset of pundits I call trimmers... trimmers criticize ... the foolish president, but avoid unequivocal denunciations of this foolish war.
--John R, MacArthur, "Pro-War Liberals Frozen in the Headlights"