It's Not Easy Being Green

Here's the listing for green from a "new" slang dictionary:

green adj 1. jealous. ("Your girlfriend is so hot. I'm green!") --Ok I can see this. Green with envy...got it!

2. uncomfortable with sexual contact, for example afraid of certain "actions" of contact. ("He's so damn green!") -- Ok...inexperience..how is this new or slang?

3. in agreement. ("Are we green about this?") ("Are we green?") ("Or, simply, "Green?"") ("A proper response to all three could be "Green.") --Now here's the kicker...I have been pondering this and I cannot make the connection between the old usage of this word and "agreement". Green doesn't even remotely approach being in agreement with anything.

Maybe I'm just green (uncomfortable) with slang, I don't know. Yet I AM green (with envy) that these publishers are making green (money), because young people are so green (inexperienced) with language to actually use it correctly. Perhaps one day...in the far far future, I'll be green (in agreement) with it...but I doubt it.