not as green as you're cabbage looking
Said upon discovering that an individual is not as unintelligent as initially thought. (Chiefly (NW) British Isles, slang, could be construed as complimentary)
"Eee! I thought you were as thick as two short planks, but it turns out you're not as green as you're cabbage looking"
green cabbage
The act of one man painting the gooch of another man green.
Danny loves it when Ryan gives him the ol' green cabbage.