waht's a greeenhorn?
It's a term from the days of cowboys and indians.
It means someone who is new to the job more or less.
Here's the definition and a little more info.
green-horn Show Spelled Pronunciation [green-hawrn]
–noun 1. an untrained or inexperienced person.
2. a naive or gullible person; someone who is easily tricked or swindled.
3. Slang. a newly arrived immigrant; newcomer.
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Origin:
1425–75; late ME; see green, horn; orig. applied to cattle with green (i.e., young) horns
