Pronunciation: ( —n.poot'on", -ôn"; —adj.poot'on', -ôn'),[key] —n.Informal. 1. an act or instance of putting someone on.
2. a prank or pretense, esp. one perpetrated or assumed in mock seriousness; hoax; spoof.
3. affected manner or behavior; pretentiousness.
—adj. assumed, feigned, pretended, or disguised: a put-on manner that didn't fool anyone.