To zone out in a particularly boring meeting, especially one that doesn't require any input and is generally dominated by loud wafflehogs.
My boss is such a wafflehog, I totally greenscaped my way through that meeting.
A fat person who dominates a meeting or situation with dull, inane and trivial conversation.
My boss is such a wafflehog, I totally greenscaped my way through that meeting.