There's green as in greenhorn, meaning inexperienced and gullible. Those with a pitch to sell are going to spot a live one—in this case government with dollars practically falling out of its pockets—coming from miles away.
someone who is easily fooled, victimized, or ridiculed
Hyphenation
some·one who I·s eas·i·ly fooled, victimized, or rid·i·culed