A simple word used for any word that you cannot remember, don't want to say, or simply do not know how to pronounce.
People often just ignore that you said "kaputa" and just pretend that you said the word that makes sense.
Do not confuse with the city, Kaputa, in Zambia.
Say you do not know how the weather really is:
"So how's the weather outside?"
"It's quite kaputa actually."