noun
flattery; smarminess; fawning
Refers to insincere, excessive, or oily praise meant to curry favor. Often used in the phrase おべんちゃらを言う.
彼は上司におべんちゃらばかり言っている。
He's always flattering his boss.
そんなおべんちゃらはやめて、本音を聞かせてください。
Stop the flattery and tell me what you really think.