He is a flatterer of the boss and is disliked by everyone.
おべっか使いばかりしていると、信用を失うよ。
If you keep acting like a sycophant, you'll lose trust.
使う
Etymology
Compound of おべっか (flattery) and 使い (user, employer). The origin of おべっか is uncertain, but it may be related to おべんちゃら (flattery) or derived from a mimetic word.
