squish
n.— «Giuliani is also a pragmatist, which is not to be confused with what rock-ribbed conservative ideologues refer to as a squish. A squish is a moderate—someone who caves to liberal pressure for no reason other than lack of conviction and inability to stand the heat.» —“Rudy Giuliani is a Conservative, Whether Purists Believe It or Not” by Dan Calabrese North Star Writers Group (Byron Center, Michigan) Nov. 1, 2007. (source: Double-Tongued Dictionary)
Further reading
When the pressure drops in an airplane cabin and all the oxygen masks fall, pilots refer to all that equipment hanging down as a rubber jungle. This is part of a complete episode.
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