rat
n.— «State officials who are seeking to find pork-filled amendments say they are currently on “rat patrol.” Legislators sometimes disagree whether a bill is a rat or simply represents an effort to help someone who has been genuinely wronged by the system.» —“Special deals have some legislators on ‘rat’ patrol” by Christopher Keating Hartford Courant (Conn.) June 13, 1993. (source: Double-Tongued Dictionary)
Further reading
Cat hair may be something you brush off, but cat hair is also a slang term that means “money.” In the same way, cat beer isn’t alcoholic — some people use cat beer as a joking term for “milk.” And imagine walking on a...
There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...