Pumbaa

Etymology
Probably connected with pumba:, following a sense of “be lumpish, heavy”

Verb

 * 1) To be foolish, silly, weak-minded, careless, negligent.
 * pumbaa kazi — take no pains about a job, do it carelessly, be idle

Related terms

 * pumbaza (“befool, make a fool of, treat as a fool, deceive, play jokes upon”)
 * jipumbaza (“be stupid on purpose, pretend to be a fool”)
 * pumbazwa, pumbazika (“be made a fool of, be duped”)